Subtracting Time for CASA Navigation exam

I struggled with reliably subtracting time accurately when preparing for the CASA CNAV examination. This method, while elementary, may help you more accurately with simple date/time subtraction for arc-to-time BOD/EOD questions.

[@alanosgood866]

Legend thank you for this

[@coryjeacocke]

No worries mate. Sing out if you need a hand with anything else or other exams, I’m no expert but got through the CPL and I’ve done most the ATPLs, so know a few tricks here and there.