CalcHoursHow 8:30 AM to 4:30 PM is calculated
4:30 PM minus 8:30 AM is 8 hours of presence. The half hour is the only part people trip over: count the minutes to the next full hour first, then the full hours, then whatever is left. In 24-hour time it is 08:30 to 16:30, which makes the subtraction plain. Unpaid breaks are deducted from that. Federal law does not require a break; with a common 30-minute lunch you are paid for 7:30 hours (7.50 decimal hours).
| Unpaid break | Hours worked | Decimal |
|---|---|---|
| 0 min | 8:00 | 8.00 |
| 15 min | 7:45 | 7.75 |
| 30 min | 7:30 | 7.50 |
| 45 min | 7:15 | 7.25 |
| 60 min | 7:00 | 7.00 |
Per week and per month
Five days from 8:30 AM to 4:30 PM with a 30-minute lunch add up to 37:30 hours per week (37.50 h) and about 162.38 hours per month (factor 4.33). That stays under the 40-hour FLSA overtime threshold. Enter your own breaks, blocks and pay rate in the calculator above; the Week tab totals the days and splits overtime.
What the day pays at common hourly rates
With a 30-minute unpaid lunch, 7:30 hours are paid. The table works that through for common rates; the federal minimum wage is $7.25, most states are higher.
| Hourly rate | Day (7:30 h) | Week (5 days) |
|---|---|---|
| $15.00 | $112.50 | $562.50 |
| $18.00 | $135.00 | $675.00 |
| $20.00 | $150.00 | $750.00 |
| $25.00 | $187.50 | $937.50 |
| $30.00 | $225.00 | $1,125.00 |
Frequently asked questions
How many hours is 8:30 AM to 4:30 PM with a 30-minute lunch?
8:30 AM to 4:30 PM is 8 hours of presence. After a 30-minute unpaid lunch you are paid for 7:30 hours, which is 7.50 in decimal hours. With a one-hour lunch it is 7:00 hours.
How many hours a week is 8:30 AM to 4:30 PM?
Five days of 8:30 AM to 4:30 PM are 40 hours of presence per week. With a 30-minute lunch each day that is 37:30 paid hours, which is at or below the 40-hour federal overtime threshold.
What is 8:30 AM to 4:30 PM in military or 24-hour time?
08:30 to 16:30. On a timesheet that is usually written as 08:30–16:30 with the unpaid break on its own line; the paid time is 7:30 hours, or 7.50 in decimal hours, which is the figure payroll multiplies by the hourly rate.
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