the equator
First day you need charge 12 hour then after you can charge 3-5 hour
From an instant after 12:00 midnight to 1:00 am.
12 hours : 12 days = 1 hour : 1 day = 1 hour : 24 hours = 1 : 24
72 minutes
1/12 of an hour is 5 minutes.
It takes the minute hand one hour to do this, and it takes the hour hand twelve hours to do it.
Twice if the clock is a 12 hour clock. Once if it is a 24 hour variant.
I think this goes back to ancient Babylonian times. Certainly the idea of a 12 hour day and a 12 hour night is very ancient.
One day = 24 hours That's twice as long as 12 hours.
540
1 day has 24 hours. 1 day is 12 times long than 2 hours.