2 ms·
>subtracting 12 in their head for PM times. Is that how you're supposed to do it? All my life I've been subtracting 2 and ignoring the fist digit for PM times
by jason0597 6y ago
>subtracting 12 in their head for PM times.
Is that how you're supposed to do it? All my life I've been subtracting 2 and ignoring the fist digit for PM times (with the exception of post 20:00 times). I just noticed that when I was a kid and been using that all this time
e.g. 17:00 - 2:00 = 15:00 => 5:00
- cmehdy 6y agoIt works for everything up to 22, so you'd only encounter issues in the last 2 hours of the day really 22:00 - 2:00 = 20:00 => 0:00
- pdonis 6y ago> All my life I've been subtracting 2 and ignoring the fist digit for PM times (with the exception of post 20:00 times) Which is the same as subtracting 12 (subtracting 2 and then subtracting 10, which is what ignoring the first digit does for times before 20:00).