It looks appropriate on my 18" wrist due to the zero lug width. It wears smaller than it looks. I had it hydro-modded for pearl diving in the Indian Ocean because despite this compact size, it is still legible at depths below 300m. Shame it has no uni-directional bezel though, I often lose track if I hold my breath for more than 27 minutes. Lume is sadly non-existent. I rate it 5/7.
That clock reminds me of the Simplex slave clocks that were wired into every school room, from elementary school through high school. I love the sweep second hand and stylish Arabic numerals.
very cool! along those lines, I've got a 1952 IBM clock which used to connect to a master clock, probably from an office building. I wrote a script to send 24vdc through a relay once per minute, so it's working again after at least 50 years. Your clock is basically the modern version of this one, thanks for showing it.
I bought a similar wifi module to mod a quartz clock. The module operating voltage is 2.5v to 3.5v. I replace the 2 alkaline battery with a 14500 3.7v/800mah lithium battery in series with a dummy battery with a 0.6v silicon diode in it. The lithium battery last about 6 months. Do use reliable brand with real rating like Sofirn. No more battery leakage issue.
I have 60 KHz clocks, receiving UK time signal, and 77.5 KHz clocks tuned on Germany time station. Two signals are enough - one of them is always available. Problem with Long Wave, during this period of high solar activity, reception is sometime swamped by x-ray burst and Plasma emissions from the Sun. This Wi-Fi is new to me. The receiver must be 2.4 GHz and therefore is immune by solar activity and thunderstorms. It must use the NNTP network time protocol to receive the time from the Internet.
The Ocest website says "The smart wall clock resets regularly via WIFI and adjust automatically for daylight savings time." BUT... an image from the instructions says "If you are in daylight saving time you need to add 1 to the current time zone." Plus, nowhere during setup do you indicate whether you observe DST or not. So it looks like to me that you have to go through the setup twice a year to adjust for DST. One of my main reasons for buying a self setting clock is so I don't have to reset it twice a year for DST! This is a deal-breaker for me.
It's a $32 NTP clock. I think the next cheapest NTP clock is $50 more. It takes like 30 seconds to set the time on this clock, and if it doesn't do DST adjustments automatically, I live in Arizona so I might not have to do anything.
@@markfellhauer352 Aliexpress has 4 and 6-digit digital clocks that set using WIFI for $15 or so. These come without a case, and require 5v via usb-c connectivity. I plug mine into the unused usb socket on my cable box. In the clock's web page you can choose to have the display changed to daylight saving by entering the time-change rules for your country.
In Atlantic Canada, we get WWVB quite reliably overnight. All our Radio Controlled clocks work well. We're in a 'radio quiet' location (no local noise).
But clearly the hands aren’t properly set. Even when in calibration mode, the hands are not pointing dead on to 12 o’clock. For all the accuracy this is supposed to provide, if the hands aren’t installed properly, it will never be fully properly calibrated. I’m saying this as someone who actually builds mechanical watches. Accurate hand installation is probably the most critical part of watchmaking. This clock seems to fail in that regard. Both minute and hour hand appear to be about 10 seconds and 10 minutes behind respectively. Even the seconds hand is a couple seconds behind the 12 index. They’re calibrated to each other, but not to the clock face.
Oh no! How can we ever resolve this? This clock has six screws holding the face and mechanism to the frame and glass front (yes, glass). Run a calibration on the clock. Remove the 6 screws and separate the clock face from the clock frame. Take your nose-picking (index) finger and gently align all three hands to the 12. Close clock and replace screws. BAM! Fixed! For someone who claims they build mechanical watches you would think that would be the obvious and totally simple solution. This can happen with any self setting analog clock, especially when they get handled roughly in shipping - some come with the hands pinned from the factory - and you're supposed to save the pin for aligning the hands or transporting the clock. And if you've ever had a wall mounted analog clock in an RV you know the hands can slip on the shafts especially on rough roads. I have an analog Casio waveceptor watch and there is a "bump" feature for aligning the hands if they get out of sync.
@@xiaodingjones1554 - What an embarrassing comment, for you to make. So what I can take from this is that you think a simple task requires the skillsets of a watchmaker. And that this simple task is outside of your abilities. On a level of difficulty this ranks up there with replacing a broken shoelace, except replacing a broken shoelace takes longer. Does replacing a broken shoelace require engaging the services of a cobbler? No. I'm not saying there's anything wrong with this clock. If you buy one it probably will arrive and be just fine. But in my observation of collecting analog atomic and NTP clocks over the past 29 years is that sometimes they will arrive with their hands misaligned, probably from rough handling during shipping. If you own any mechanical wall or mantle clocks, setting the correct time on them often means manipulating the hands and maybe even regulating the clock by adjusting the escapement. None of that requires a watchmaker. All it requires is being a normal functioning adult, with normal coping abilities.
I was wondering if anyone else noticed this. I'm glad I'm not the only one. My guess is that most people either won't notice or won't care about the hands being off that small amount.I would be hesitant to push the hands to align them for fear of breaking something in the mechanism and don't have the proper tools to pull the hands off and reinstall them.
@@markfellhauer352 You vastly overestimate the skills of the average adult. Even if they are skilled, it takes experience to know what needs to be done, and whether it will harm the mechanism or not. I suspect you don't know many people, if any.
I live on the East Coast and I use several radio clocks in my home and have a Casio Waveceptor watch. It's really hit or miss with reception. Solar storms and general weather can kill reception too. I have west facing windows near the clocks and they usually work. I got a clock for my wife who is in a long term care facility and her room is facing East. No reception at all. I'm an electrical engineer and I was thinking of building a WiFi reader that would transmit a WWB broadcast time code signal that can read by radio clocks in the house. I could get a nice strong signal like you have in CO. It could just be a plug in brick. This is a good compromise but I doubt it gets the full data packet that occurs every minute. That also includes the date as well a a DST set bit. This looks like a half way concept of what I am working on. I was researching the access to internet time. Tempted to reverse engineer how this works. My computer,phone and ecobee thermostat have no trouble changing the time for DST so Im sure it will change this clock.
this looks very good! Targer location is the booth in a theater, and that booth has concrete block walls, within more concrete block walls! No radio reception (including cellular), but we have WiFi galore! Thanks!
I’m used to the once-a-second jumps of quartz watches. Even those can be made to advance many times a second to approximate a sweep, as with Bulova Precisionist watches.
The same mechanism is available all over Amazon, eBay, AliExpress, etc. I bought one to make an oversized wall clock mounted high on the wall that I wouldn't have to mess with setting it from a ladder. twice/year, since batteries in these things last for a couple of years. The DST issue is a dealbreaker, since you still have to touch the thing to enter the UI and change the settings (modify the timezone to fool it).
Thank you so much for the review. I reversed search the clock module and found that I can buy them for around under 15USD shipped from China. It’s pretty awesome that these modules exist and is relatively cheap. I’ll probably get one of these module and upgrade an existing wall clock.
@@BryanTorok a quick search online will tell you that the CH899 clock movement is manufactured by Dongguan Heng-Rong Hardware Electronic Technology Co., Ltd. which is a reputable manufacturer.
People don’t seem to like that it only lasts ten months, however that’s only the expected time I am pretty sure, since I have a flip clock that was supposed to last only 6 months and it ended up lasting 2 years.
Hello. Interesting clock. I only have Casio or GShock Atomic. I have noticed the past year that reception has suffered, probably due to the LF TX antenna damage in CO. Do you know if that has been repaired yet? I have an SDR receiver and an indoor loop ant and get a very nice signal on lf signal, so perhaps there is some rfi to the watches. This clock looks worthwhile as wifi time source seems very accurate on my computers. Thank you!
Not just antenna damage but operating on lower power output due to the damage. Sad they won’t pay to just fix it. Guess we can’t handle that but $16B more going somewhere overseas today…
I have several Seiko silent sweep clocks in my home. Not with WiFi or atomic clock synchronization though. Time really does go by continuously and not on a second by second basis. We just never bother with the milliseconds or microseconds in our daily life... I do have an Oregon Scientific digital clock that is synchronized to the official NIST atomic clock in Boulder, Colorado so that's always the reference for my other clocks including the ones on my microwave and oven... 😂
I don't think WWVB is up to full power yet. They were targeting late September. Their coverage should improve, fingers crossed. You know the old plug in clocks are very very accurate, using a sychronous motor they keep the beat from the power grid.
If it is using WiFi to calibrate itself the to an atomic clock, it is likely getting that information using (NTP) Network Time Protocol over the Internet by connecting to NTP server. My Brother built and LED digital clock from a kit that does the same thing.
The left button triggers the wifi hotspot mode, the right button resets the hands (and clears the settings?). Hold the left button until the LED (under the batteries) blinks then quickly get to the wifi hotspot (before it times out). You have to get to the web page fast or the hotspot mode shuts back off, so be ready. Network time updates don't include DST information like WWVB transmissions do. So it is more complicated for network time based clocks to do proper DST changeovers and it doesn't look like this clock has any automatic DST features. So perhaps change the batteries twice a year when you are resetting the GMT offset settings for DST to beat the 10 months claimed battery life.
Cool clock, WWVB kinda flakey more than a couple states away from Colorado. However, most good quartz clocks are essentially silent, with my ear pressed to the glass, I can barely hear the tick.
Surprisingly, WWVB is somewhat usable in Hawaii. I've found that most clocks don't have the Hawaii time zone as an option. I have purchased a few analog WWVB clocks and set them to pacific standard time, then physically moved the the hour hand back by 2. In my case, I have to place the clock on a west facing wall overnight for it to get its initial time fix. It seems to maintain lock after that.
@@zot8565 WWVH broadcasts time and frequency information 24 hours per day, 7 days per week to listeners worldwide. The station is located on the Island of Kauai, Hawaii on a 12 hectare (30 acre) site near Kekaha at Kokole Point.
Since it checks the network time once a day it would seem to me that it will change to standard time when your network updates. If that is the case, it would be better to have the clock update at 3am rather than 10pm so that you won't have to wait til the evening of the day the clocks change for your Wi-Fi clock to update.
That... depends. Network Time Protocol sends time in UTC, it is the job of the receiving device to convert that to local time. Since the clock is specifying a UTC offset and not a geographic location I don't see how it can know to adjust for DST. It has to know roughly where you are to adjust correctly. (For example, I live in Texas but I specify my timezone as America/Chicago since we are in the same timezone and observe DST at the same time.)
Will it lose the WiFi credentials when i change batteries? How long time will the batteries last? Auto DST? Can i change time server? I would like to connect it to a power supply and run it from the wall. Then i never need to change batteries or adjust it anymore ...
I took the batteries out for about a minute and then replaced them. The clock was able to set itself without having to use the phone to set it up again. The manual said I can expect the batteries to last about 10 months but, so far, I've only had this clock for one month. I believe it will NOT automatically adjust for DST but I will know for sure in about a month. As for changing the time server, I can't find any reference to a specific time server so I really don't know the answer.
As I suspected, the clock didn’t automatically adjust for Daylight Saving Time. I had to go back to the web browser connection and do a full reset with the new hours offset.
14:35 same thing occurs with my Hearkent talking clock. It’s always about a second behind, and if it doesn’t get consistent updates from WWVB, it’ll fall about 5 seconds behind, sometimes more. But it’s not that big a deal to me, it’s just interesting. It’s also a sweep. Maybe sweeps are less reliable?
No. It will probably need to be adjusted depending on how it handles the time change, if it actually adjusts for time changes. Given it takes a button press and a 30 seconds to set the clock, it's not that much of an inconvenience. Since we're already at UTC -7 I think the clock will just chug along. If it rolls back, most likely pulling the batteries will keep it at UTC-7 (matching PDT) and the time will set correctly on power up. It's a $32 NTP clock. I have low expectations, and I'm OK with that.
I have the Amazon clock which connects to an Alexa device via bluetooth. It wasn’t straightforward and eventually I left it and it set itself perfectly. I change the batteries about twice a year and it sets itself without drama. I’m keen to try non-Amazon brands. I live in Australia and don’t have access to the atomic time servers in US and Japan. I wish we did but who would manage the service? Telstra wouldn’t do it for nothing.
@@xiaodingjones1554 I refer to the widely marked “atomic clocks” which receive radio signals directly from a reference source. They are not WiFi and do not rely on internet. The Amazon clock and this OCEST clock are the only wireless clocks although the Amazon product piggybacks on the Alexa systen via bluetooth.
Wifi is taking a lot more power than the simple radio tower receiver (which is by design mostly a passive component whereas this clock has to have a sender and receiver).
Because AA batteries are so expensive? The WiFi connectivity has some power requirement, so It's not unexpected. I have a few NTP & WWVB analog wall clocks that have provisions for extra batteries for those people who have clocks in places where battery swaps may be difficult. But I prefer to swap out batteries sooner than later in case they start to leak. I also have some clocks that can be powered remotely either with DC or via Power over Ethernet. It's not hard to convert a battery powered clock to a wired power supply in most cases.
I'd have that apart and reposition the hands myself in no time. That kind of inaccurate setting is not really acceptable for a clock whose very selling point is its accuracy.
@@peetiegonzalez1845 - I don't see accuracy as a selling point in a clock that retails for $32. I consider these NTP or atomic clocks accurate to plus/minus a few seconds a day (when and if they sync) and the novelty of self-setting. It's not like you're getting a disciplined oscillator. The hands can get bumped out of alignment in shipping.
@@markfellhauer352 Several seconds a day? I have mechanical watches accurate to less than a second. Obv they didn't cost $32, but a regular quartz clock is accurate to several seconds a *month*. If it updates itself once every couple of days it should never be out by more than a second. As for the bump in shipping... yeah that's probably what happened here, I'd try to relign the mechanism that's attached to the back before I took the face of and re-set the hands, but it'd drive me crazy if it were permanently skewed like that.
@@peetiegonzalez1845 - BS. The average commodity quartz clock is churned out of a Chinese factory by the tens of thousands both analog and digital. They are not regulated and cost pennies to make. BTW, I've actually worked in a facility than cans Quartz crystals and makes TCXOs, and I've worked for Burr-Brown (now TI). I deal with time and frequency standards as part of my job. Commodity analog clocks run on an NCO with a dry plastic gear train. I probably have 20 atomic clocks and if they don't sync they'll drift 5 to ten seconds a day (digital). I'm looking at my Oregon Scientific RMR166 right now - it hasn't synced in maybe 5 days and it's running 54 seconds ahead of my Bulova Connect. I own several mechanical clocks and watches and have built a few GPSDOs for microwave transceivers. I actually understand what the terms accuracy and repeatability mean. I find it hard to believe you own a mechanical watch with sub-second accuracy. Not even a COSC certification goes that far. The fact that someone would make such statement tends to undermine the veracity of their claims and basic competencies.
It doesn't work that way. You set the clock for fixed UTC offset and there it stays. If you live in an area that the UTC offset changes you're going to have to reset the offset using the clock's timeset utility.
And the 6 is just an upside-down 9! 5 & 2 the same = Strobogrammatic Font. It's a nice touch. Look at a clock with a 7 segment LED display. Also most clocks with Roman Numerals use IIII instead of IV for four-o'clock.
I'm in the SE part of the country, and I lose electric power a few times a year. Maybe you heard about Helene? My battery clocks connecting to Colorado kept on ticking. But, my Comcast network, and all of my WiFi networks shut down... A Wifi clock does not sound like a reliable solution...
It doesn’t need Wi-Fi to keep running, only to set itself and to occasionally resync with to prevent any clock drift. Wi-Fi being down for a week or two just means it might drift by a second or a few seconds.
It's a $32 NTP clock. It polls an NTP server one time a day and adjusts accordingly. This clock will keep on running and keeping time as a quartz clock even without an Internet connection. It sounds to me like you haven't properly engineered your computer network to failover to a redundant power and Internet source. That's not a clock problem, that's a you problem.
It looks appropriate on my 18" wrist due to the zero lug width. It wears smaller than it looks. I had it hydro-modded for pearl diving in the Indian Ocean because despite this compact size, it is still legible at depths below 300m. Shame it has no uni-directional bezel though, I often lose track if I hold my breath for more than 27 minutes.
Lume is sadly non-existent. I rate it 5/7.
That clock reminds me of the Simplex slave clocks that were wired into every school room, from elementary school through high school. I love the sweep second hand and stylish Arabic numerals.
Simplex clocks are expensive! I looked em up one day cuz I was bored waiting for some school event, and they’re like $600!
very cool! along those lines, I've got a 1952 IBM clock which used to connect to a master clock, probably from an office building. I wrote a script to send 24vdc through a relay once per minute, so it's working again after at least 50 years.
Your clock is basically the modern version of this one, thanks for showing it.
I bought a similar wifi module to mod a quartz clock.
The module operating voltage is 2.5v to 3.5v.
I replace the 2 alkaline battery with a 14500 3.7v/800mah lithium battery
in series with a dummy battery with a 0.6v silicon diode in it.
The lithium battery last about 6 months.
Do use reliable brand with real rating like Sofirn.
No more battery leakage issue.
I bought one a couple of months age, after my WWVB clock stopped working. Love it! Just not sure what will happen on Nov 3, we shall see.
I have 60 KHz clocks, receiving UK time signal, and 77.5 KHz clocks tuned on Germany time station. Two signals are enough - one of them is always available. Problem with Long Wave, during this period of high solar activity, reception is sometime swamped by x-ray burst and Plasma emissions from the Sun.
This Wi-Fi is new to me. The receiver must be 2.4 GHz and therefore is immune by solar activity and thunderstorms.
It must use the NNTP network time protocol to receive the time from the Internet.
The Ocest website says "The smart wall clock resets regularly via WIFI and adjust automatically for daylight savings time." BUT... an image from the instructions says "If you are in daylight saving time you need to add 1 to the current time zone." Plus, nowhere during setup do you indicate whether you observe DST or not. So it looks like to me that you have to go through the setup twice a year to adjust for DST. One of my main reasons for buying a self setting clock is so I don't have to reset it twice a year for DST! This is a deal-breaker for me.
It's a $32 NTP clock. I think the next cheapest NTP clock is $50 more. It takes like 30 seconds to set the time on this clock, and if it doesn't do DST adjustments automatically, I live in Arizona so I might not have to do anything.
@@markfellhauer352 Aliexpress has 4 and 6-digit digital clocks that set using WIFI for $15 or so. These come without a case, and require 5v via usb-c connectivity. I plug mine into the unused usb socket on my cable box. In the clock's web page you can choose to have the display changed to daylight saving by entering the time-change rules for your country.
Agree ... It is a big problem
In Atlantic Canada, we get WWVB quite reliably overnight. All our Radio Controlled clocks work well. We're in a 'radio quiet' location (no local noise).
But clearly the hands aren’t properly set. Even when in calibration mode, the hands are not pointing dead on to 12 o’clock. For all the accuracy this is supposed to provide, if the hands aren’t installed properly, it will never be fully properly calibrated. I’m saying this as someone who actually builds mechanical watches. Accurate hand installation is probably the most critical part of watchmaking. This clock seems to fail in that regard. Both minute and hour hand appear to be about 10 seconds and 10 minutes behind respectively. Even the seconds hand is a couple seconds behind the 12 index. They’re calibrated to each other, but not to the clock face.
Oh no! How can we ever resolve this? This clock has six screws holding the face and mechanism to the frame and glass front (yes, glass). Run a calibration on the clock. Remove the 6 screws and separate the clock face from the clock frame. Take your nose-picking (index) finger and gently align all three hands to the 12. Close clock and replace screws. BAM! Fixed! For someone who claims they build mechanical watches you would think that would be the obvious and totally simple solution.
This can happen with any self setting analog clock, especially when they get handled roughly in shipping - some come with the hands pinned from the factory - and you're supposed to save the pin for aligning the hands or transporting the clock. And if you've ever had a wall mounted analog clock in an RV you know the hands can slip on the shafts especially on rough roads.
I have an analog Casio waveceptor watch and there is a "bump" feature for aligning the hands if they get out of sync.
I have never had to set the hands on an atomic clock. So, I need to be a watchmaker now, to use this thing?
@@xiaodingjones1554 - What an embarrassing comment, for you to make. So what I can take from this is that you think a simple task requires the skillsets of a watchmaker. And that this simple task is outside of your abilities.
On a level of difficulty this ranks up there with replacing a broken shoelace, except replacing a broken shoelace takes longer. Does replacing a broken shoelace require engaging the services of a cobbler? No.
I'm not saying there's anything wrong with this clock. If you buy one it probably will arrive and be just fine. But in my observation of collecting analog atomic and NTP clocks over the past 29 years is that sometimes they will arrive with their hands misaligned, probably from rough handling during shipping. If you own any mechanical wall or mantle clocks, setting the correct time on them often means manipulating the hands and maybe even regulating the clock by adjusting the escapement. None of that requires a watchmaker. All it requires is being a normal functioning adult, with normal coping abilities.
I was wondering if anyone else noticed this. I'm glad I'm not the only one. My guess is that most people either won't notice or won't care about the hands being off that small amount.I would be hesitant to push the hands to align them for fear of breaking something in the mechanism and don't have the proper tools to pull the hands off and reinstall them.
@@markfellhauer352 You vastly overestimate the skills of the average adult. Even if they are skilled, it takes experience to know what needs to be done, and whether it will harm the mechanism or not. I suspect you don't know many people, if any.
Even better is the Mondaine wall clock!
I live on the East Coast and I use several radio clocks in my home and have a Casio Waveceptor watch. It's really hit or miss with reception. Solar storms and general weather can kill reception too. I have west facing windows near the clocks and they usually work. I got a clock for my wife who is in a long term care facility and her room is facing East. No reception at all. I'm an electrical engineer and I was thinking of building a WiFi reader that would transmit a WWB broadcast time code signal that can read by radio clocks in the house. I could get a nice strong signal like you have in CO. It could just be a plug in brick. This is a good compromise but I doubt it gets the full data packet that occurs every minute. That also includes the date as well a a DST set bit. This looks like a half way concept of what I am working on. I was researching the access to internet time. Tempted to reverse engineer how this works. My computer,phone and ecobee thermostat have no trouble changing the time for DST so Im sure it will change this clock.
this looks very good! Targer location is the booth in a theater, and that booth has concrete block walls, within more concrete block walls! No radio reception (including cellular), but we have WiFi galore! Thanks!
I like that ticks Greg Sweep is for automatic snobs 😂
Personally, I love the preciseness of one second step motor ticks on quartz timepieces.
I’m used to the once-a-second jumps of quartz watches. Even those can be made to advance many times a second to approximate a sweep, as with Bulova Precisionist watches.
@@ak983625 - Personally I love the preciseness of the second hand sweep on 3 Hz or higher mechanical timepieces.
The same mechanism is available all over Amazon, eBay, AliExpress, etc. I bought one to make an oversized wall clock mounted high on the wall that I wouldn't have to mess with setting it from a ladder. twice/year, since batteries in these things last for a couple of years. The DST issue is a dealbreaker, since you still have to touch the thing to enter the UI and change the settings (modify the timezone to fool it).
Thank you so much for the review. I reversed search the clock module and found that I can buy them for around under 15USD shipped from China. It’s pretty awesome that these modules exist and is relatively cheap.
I’ll probably get one of these module and upgrade an existing wall clock.
It's amazing how inexpensively those clever Chinese can built things using children and slave labor.
@@BryanTorok a quick search online will tell you that the CH899 clock movement is manufactured by Dongguan Heng-Rong Hardware Electronic Technology Co., Ltd. which is a reputable manufacturer.
Thank you for the review. looking forward to the follow-up video.
Thanks Wi-Fi clocks are very handy to have.
It seems easier to set up than the bulova Wi-Fi one. Plus I like the look.
People don’t seem to like that it only lasts ten months, however that’s only the expected time I am pretty sure, since I have a flip clock that was supposed to last only 6 months and it ended up lasting 2 years.
Hello. Interesting clock. I only have Casio or GShock Atomic. I have noticed the past year that reception has suffered, probably due to the LF TX antenna damage in CO. Do you know if that has been repaired yet? I have an SDR receiver and an indoor loop ant and get a very nice signal on lf signal, so perhaps there is some rfi to the watches. This clock looks worthwhile as wifi time source seems very accurate on my computers. Thank you!
Not just antenna damage but operating on lower power output due to the damage. Sad they won’t pay to just fix it. Guess we can’t handle that but $16B more going somewhere overseas today…
I have several Seiko silent sweep clocks in my home. Not with WiFi or atomic clock synchronization though. Time really does go by continuously and not on a second by second basis. We just never bother with the milliseconds or microseconds in our daily life... I do have an Oregon Scientific digital clock that is synchronized to the official NIST atomic clock in Boulder, Colorado so that's always the reference for my other clocks including the ones on my microwave and oven... 😂
I don't think WWVB is up to full power yet. They were targeting late September. Their coverage should improve, fingers crossed. You know the old plug in clocks are very very accurate, using a sychronous motor they keep the beat from the power grid.
If it is using WiFi to calibrate itself the to an atomic clock, it is likely getting that information using (NTP) Network Time Protocol over the Internet by connecting to NTP server. My Brother built and LED digital clock from a kit that does the same thing.
The left button triggers the wifi hotspot mode, the right button resets the hands (and clears the settings?). Hold the left button until the LED (under the batteries) blinks then quickly get to the wifi hotspot (before it times out). You have to get to the web page fast or the hotspot mode shuts back off, so be ready. Network time updates don't include DST information like WWVB transmissions do. So it is more complicated for network time based clocks to do proper DST changeovers and it doesn't look like this clock has any automatic DST features. So perhaps change the batteries twice a year when you are resetting the GMT offset settings for DST to beat the 10 months claimed battery life.
Or move to Arizona.
Cool clock, WWVB kinda flakey more than a couple states away from Colorado. However, most good quartz clocks are essentially silent, with my ear pressed to the glass, I can barely hear the tick.
Surprisingly, WWVB is somewhat usable in Hawaii. I've found that most clocks don't have the Hawaii time zone as an option. I have purchased a few analog WWVB clocks and set them to pacific standard time, then physically moved the the hour hand back by 2. In my case, I have to place the clock on a west facing wall overnight for it to get its initial time fix. It seems to maintain lock after that.
@JimAllen-Persona I’m there too. Got the La Cross Ultratomic recently and it syncs to WWVB where no other clock has. It’s a big clock at 14” though.
@@zot8565 WWVH broadcasts time and frequency information 24 hours per day, 7 days per week to listeners worldwide. The station is located on the Island of Kauai, Hawaii on a 12 hectare (30 acre) site near Kekaha at Kokole Point.
imagine a solar face that size 🔆
Since it checks the network time once a day it would seem to me that it will change to standard time when your network updates. If that is the case, it would be better to have the clock update at 3am rather than 10pm so that you won't have to wait til the evening of the day the clocks change for your Wi-Fi clock to update.
That... depends. Network Time Protocol sends time in UTC, it is the job of the receiving device to convert that to local time. Since the clock is specifying a UTC offset and not a geographic location I don't see how it can know to adjust for DST. It has to know roughly where you are to adjust correctly. (For example, I live in Texas but I specify my timezone as America/Chicago since we are in the same timezone and observe DST at the same time.)
A bit big on the wrist, I'd imagine. 🇮🇪
Will it lose the WiFi credentials when i change batteries?
How long time will the batteries last?
Auto DST?
Can i change time server?
I would like to connect it to a power supply and run it from the wall. Then i never need to change batteries or adjust it anymore ...
I took the batteries out for about a minute and then replaced them. The clock was able to set itself without having to use the phone to set it up again. The manual said I can expect the batteries to last about 10 months but, so far, I've only had this clock for one month. I believe it will NOT automatically adjust for DST but I will know for sure in about a month. As for changing the time server, I can't find any reference to a specific time server so I really don't know the answer.
Greg, did this clock adjust itself when switching from Daylight Savings to Standard time?
As I suspected, the clock didn’t automatically adjust for Daylight Saving Time. I had to go back to the web browser connection and do a full reset with the new hours offset.
@ Thanks for the update!
Which ntp server does it use
14:35 same thing occurs with my Hearkent talking clock. It’s always about a second behind, and if it doesn’t get consistent updates from WWVB, it’ll fall about 5 seconds behind, sometimes more. But it’s not that big a deal to me, it’s just interesting. It’s also a sweep. Maybe sweeps are less reliable?
We don't observe daylight savings here in Arizona where I live does it have a mode for that?
No. It will probably need to be adjusted depending on how it handles the time change, if it actually adjusts for time changes. Given it takes a button press and a 30 seconds to set the clock, it's not that much of an inconvenience. Since we're already at UTC -7 I think the clock will just chug along. If it rolls back, most likely pulling the batteries will keep it at UTC-7 (matching PDT) and the time will set correctly on power up. It's a $32 NTP clock. I have low expectations, and I'm OK with that.
I have the Amazon clock which connects to an Alexa device via bluetooth. It wasn’t straightforward and eventually I left it and it set itself perfectly. I change the batteries about twice a year and it sets itself without drama. I’m keen to try non-Amazon brands.
I live in Australia and don’t have access to the atomic time servers in US and Japan. I wish we did but who would manage the service? Telstra wouldn’t do it for nothing.
It's on the Internet, Australia is not on the Internet?
@@xiaodingjones1554 I refer to the widely marked “atomic clocks” which receive radio signals directly from a reference source. They are not WiFi and do not rely on internet.
The Amazon clock and this OCEST clock are the only wireless clocks although the Amazon product piggybacks on the Alexa systen via bluetooth.
I was almost convinced to try this out until you stated that the batteries expected to last only 10 months. Yikes!
My wwvb quartz wall clock goes three years on a single AA.
Wifi is taking a lot more power than the simple radio tower receiver (which is by design mostly a passive component whereas this clock has to have a sender and receiver).
Because AA batteries are so expensive? The WiFi connectivity has some power requirement, so It's not unexpected. I have a few NTP & WWVB analog wall clocks that have provisions for extra batteries for those people who have clocks in places where battery swaps may be difficult. But I prefer to swap out batteries sooner than later in case they start to leak.
I also have some clocks that can be powered remotely either with DC or via Power over Ethernet. It's not hard to convert a battery powered clock to a wired power supply in most cases.
Can you set this to Zulu time? Or international time zones?
The hands are sufficiently skewed from the 12 o'clock position to trigger my ADD. Digital for me, thank you.
I'd have that apart and reposition the hands myself in no time. That kind of inaccurate setting is not really acceptable for a clock whose very selling point is its accuracy.
@@peetiegonzalez1845 - I don't see accuracy as a selling point in a clock that retails for $32. I consider these NTP or atomic clocks accurate to plus/minus a few seconds a day (when and if they sync) and the novelty of self-setting. It's not like you're getting a disciplined oscillator.
The hands can get bumped out of alignment in shipping.
@@markfellhauer352 Several seconds a day? I have mechanical watches accurate to less than a second. Obv they didn't cost $32, but a regular quartz clock is accurate to several seconds a *month*. If it updates itself once every couple of days it should never be out by more than a second. As for the bump in shipping... yeah that's probably what happened here, I'd try to relign the mechanism that's attached to the back before I took the face of and re-set the hands, but it'd drive me crazy if it were permanently skewed like that.
@@peetiegonzalez1845 - BS. The average commodity quartz clock is churned out of a Chinese factory by the tens of thousands both analog and digital. They are not regulated and cost pennies to make. BTW, I've actually worked in a facility than cans Quartz crystals and makes TCXOs, and I've worked for Burr-Brown (now TI). I deal with time and frequency standards as part of my job.
Commodity analog clocks run on an NCO with a dry plastic gear train. I probably have 20 atomic clocks and if they don't sync they'll drift 5 to ten seconds a day (digital). I'm looking at my Oregon Scientific RMR166 right now - it hasn't synced in maybe 5 days and it's running 54 seconds ahead of my Bulova Connect.
I own several mechanical clocks and watches and have built a few GPSDOs for microwave transceivers. I actually understand what the terms accuracy and repeatability mean. I find it hard to believe you own a mechanical watch with sub-second accuracy. Not even a COSC certification goes that far. The fact that someone would make such statement tends to undermine the veracity of their claims and basic competencies.
I’ve been looking for a good NTP clock for years. I don’t even care about the CO signal
I would have the clock check time at 3am for standard/daylight savings time.
It doesn't work that way. You set the clock for fixed UTC offset and there it stays. If you live in an area that the UTC offset changes you're going to have to reset the offset using the clock's timeset utility.
Make sure you knock down your phone's VPN before connecting to the clock...
Funny you should mention that. Because I tried my phone and my laptop to set this clock before remembering I had a VPN enabled on both. Duh!
I wonder if it is using (S)NTP and which server...
Needs a deeper dive with wireshark.
so they gave you two days to learn ?! nice GS sweep!! hang it on the firewall
The 5 is an upside-down 2
And the 6 is just an upside-down 9! 5 & 2 the same = Strobogrammatic Font. It's a nice touch. Look at a clock with a 7 segment LED display.
Also most clocks with Roman Numerals use IIII instead of IV for four-o'clock.
I'm in the SE part of the country, and I lose electric power a few times a year. Maybe you heard about Helene? My battery clocks connecting to Colorado kept on ticking. But, my Comcast network, and all of my WiFi networks shut down... A Wifi clock does not sound like a reliable solution...
It doesn’t need Wi-Fi to keep running, only to set itself and to occasionally resync with to prevent any clock drift. Wi-Fi being down for a week or two just means it might drift by a second or a few seconds.
It's a $32 NTP clock. It polls an NTP server one time a day and adjusts accordingly. This clock will keep on running and keeping time as a quartz clock even without an Internet connection. It sounds to me like you haven't properly engineered your computer network to failover to a redundant power and Internet source. That's not a clock problem, that's a you problem.
I have 3 all failed. I am out of time.
Ticks are bloody annoying no matter where they are. Not for me.