Difference between 8:30am and 9:30am

How many hours between 8:30am and 9:30am?

Answer

The difference between 8:30am and 9:30am is

1 Hour

= 60 Minutes · 1 decimal hour

8:30 AM → 9:30 AM the same day · by the clock, breaks not subtracted

With a 30-min unpaid break: 1 h − 30 min = 30 min paid

8:30 AM — start 9:30 AM — end

9:30 AM − 8:30 AM = 1 hour

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start ↓ end →	7:30am	8:30am	9:30am	10:30am	11:30am
6:30am	1 h	2 h	3 h	4 h	5 h
7:30am	0 min	1 h	2 h	3 h	4 h
8:30am	23 h	0 min	1 h	2 h	3 h
9:30am	22 h	23 h	0 min	1 h	2 h
10:30am	21 h	22 h	23 h	0 min	1 h