*Nevada daily overtime only applies if you are paid under $18.00 an hour. California also has double time after 12 hours; the California calculator includes it.
How to calculate hours for one day
- End time minus start time. 7:00 AM to 5:30 PM is 10 hours 30 minutes.
- Minus unpaid breaks. A 30-minute lunch leaves 10 hours.
- To decimal hours: divide the minutes by 60. 10 hours 15 minutes = 10.25 hours.
- Pay: decimal hours × hourly rate, with daily overtime at 1.5× where your state has a daily rule.
Daily overtime: who gets it
Most of the US only counts overtime by the week (over 40 hours). A long day does not earn overtime on its own there. Daily overtime exists in California and Alaska (over 8 hours), Nevada (over 8, if paid under $18.00), Colorado (over 12) and for Oregon manufacturing (over 10). Hours over 40 in the week still count too, so add up the whole week in the full calculator.
Overnight shifts
If your shift ends after midnight, enter the real end time. An end time earlier than the start is counted as the next day: 10:00 PM to 6:30 AM with a 30-minute break is 8 hours.
Sources: US DOL Fact Sheet #22: Hours Worked · California DIR: Overtime FAQ · Colorado CDLE: COMPS Order #40
Questions
How do I calculate my hours for one day?
Subtract your start time from your end time, then subtract unpaid breaks. 7:00 AM to 5:30 PM with a 30-minute lunch is 10 hours.
Is working 10 hours in a day overtime?
Only where there is daily overtime: California and Alaska after 8 hours, Nevada after 8 for workers under $18.00 an hour, Oregon manufacturing after 10, Colorado after 12. Elsewhere only hours over 40 in the week are overtime.
How do I write 8 hours 45 minutes in decimals?
8.75 hours. Divide the minutes by 60: 45 ÷ 60 = 0.75.