The short answer
From 8:15 AM to 4:45 PM is 8 hours 30 minutes (8.50 decimal). With a 30-minute unpaid break it is 8:00. For an overnight span, 10:00 PM to 6:00 AM is 8:00 hours.
The formula
Minutes = end (min after midnight) − start; if end < start, add 1,440
Net minutes = minutes − break
Decimal hours = net minutes ÷ 60
If start and end are the same time, the answer is 0, not 24 hours. For a full 24-hour span, enter an end time one minute earlier or use the weekly time card.
FAQ
How do I calculate the time between two times?
Convert both to minutes after midnight, subtract, and if the result is negative add 24 hours (1,440 minutes). Then divide by 60 for decimal hours.
Does it work past midnight?
Yes. 10 PM to 6 AM is 8 hours because an earlier end time is treated as the next day.
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