How 9 AM to 4:30 PM is calculated
4:30 PM minus 9 AM is 7.5 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 09:00 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 7:00 hours (7.00 decimal hours).
| Unpaid break | Hours worked | Decimal |
|---|---|---|
| 0 min | 7:30 | 7.50 |
| 15 min | 7:15 | 7.25 |
| 30 min | 7:00 | 7.00 |
| 45 min | 6:45 | 6.75 |
| 60 min | 6:30 | 6.50 |
Per week and per month
Five days from 9 AM to 4:30 PM with a 30-minute lunch add up to 35:00 hours per week (35.00 h) and about 151.55 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, 7:00 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 (7:00 h) | Week (5 days) |
|---|---|---|
| $15.00 | $105.00 | $525.00 |
| $18.00 | $126.00 | $630.00 |
| $20.00 | $140.00 | $700.00 |
| $25.00 | $175.00 | $875.00 |
| $30.00 | $210.00 | $1,050.00 |
Frequently asked questions
How many hours is 9 AM to 4:30 PM with a 30-minute lunch?
9 AM to 4:30 PM is 7.5 hours of presence. After a 30-minute unpaid lunch you are paid for 7:00 hours, which is 7.00 in decimal hours. With a one-hour lunch it is 6:30 hours.
How many hours a week is 9 AM to 4:30 PM?
Five days of 9 AM to 4:30 PM are 37.5 hours of presence per week. With a 30-minute lunch each day that is 35:00 paid hours, which is at or below the 40-hour federal overtime threshold.
What is 9 AM to 4:30 PM in military or 24-hour time?
09:00 to 16:30. On a timesheet that is usually written as 09:00–16:30 with the unpaid break on its own line; the paid time is 7:00 hours, or 7.00 in decimal hours, which is the figure payroll multiplies by the hourly rate.
Related calculators
- Work Hours CalculatorEnter your start time, end time and unpaid breaks to get hours worked for a day, a week or a pay period in hh:mm and decimal hours. Overnight shifts, overtime and pay are handled automatically.
- Hours Calculator: Add and Subtract Hours and MinutesAdd a list of hours and minutes, subtract one duration from another, and see the result in hh:mm, total minutes and decimal hours.
- Hours to Decimal Calculator and Minutes to Decimal ChartEnter a time in hours and minutes to get decimal hours, or enter decimal hours to get hours and minutes. The chart below lists every minute from 1 to 60.
- Time Duration Calculator: Hours Between Two TimesEnter a start time and an end time, with dates if the span is longer than a day, to get the elapsed time in hours and minutes, total minutes and decimal hours.