π Minutes Between Two Times
Enter two times and get the exact minutes (and hours) between them, overnight included.
How to Find Minutes Between Two Times
Enter the start and end times and the calculator returns the minutes between them, the hours-and-minutes form, and the total in seconds. Overnight spans are handled automatically: 10 PM to 6 AM reads as 480 minutes, not negative 960. Same time twice gives zero.
Enter the start time.
Enter the end time. If it is earlier than the start, the calculator assumes the next day.
Hit Calculate Minutes for the minute count plus hours and seconds.
Check the overnight note when the span crosses midnight, so shift math stays accurate.
The Method
Each time becomes minutes since midnight, then subtract. A negative result means the end time is tomorrow, so adding 1,440 minutes (24 hours) wraps it correctly. From 9:30 AM (570) to 5:45 PM (1,065): 1,065 - 570 = 495 minutes, or 8 hours 15 minutes. From 10 PM (1,320) to 6 AM (360): 360 - 1,320 = -960, plus 1,440 = 480 minutes.
Worked Example
A workday from 9:30 AM to 5:45 PM is 495 minutes: 8 hours and 15 minutes, or 29,700 seconds. A night shift from 10:00 PM to 6:00 AM is 480 minutes: exactly 8 hours. Both match the calculator, including the overnight flag on the second one.
Common Uses
Shift lengths, billable hours, parking durations, cooking times, workout splits, and screen-time math all reduce to minutes between two times. For payroll, convert the result to decimal hours (495 minutes = 8.25 hours) before multiplying by the rate. For sleep tracking, the overnight handling is the whole point: "11 PM to 7 AM" is 480 minutes of sleep, and no mental math is required at midnight.
Minutes vs Decimal Hours
Minutes are exact; decimal hours are convenient. Fifteen minutes is 0.25 hours, 30 is 0.5, 45 is 0.75, and the pattern breaks at anything else: 20 minutes is 0.333 hours, which is why timesheets use quarter-hour rounding. When precision matters, keep minutes; when multiplying by rates, convert once at the end.
Shift Work and Overtime Math
For hourly workers, minutes between clock-in and clock-out feed straight into overtime law. In the US, the Fair Labor Standards Act sets the overtime threshold at 40 hours per week, paid at time-and-a-half, though some states and employers are more generous. That makes the weekly total, not any single day, the number that matters: five 495-minute days are 2,475 minutes, or 41.25 hours, which is 1.25 hours of overtime. Add the week with the time-adder tool and compare against 40.
A Second Worked Example: The Parking Meter
Parked at 9:47 AM, meter expires 1:15 PM. A quick mental try: 9:47 to 1:15 feels like about three and a half hours, but "about" is how parking tickets happen. Check with the method: 9:47 AM is 9 times 60 plus 47, or 587 minutes since midnight; 1:15 PM is 13 times 60 plus 15, or 795. 795 minus 587 is 208 minutes, or 3 hours 28 minutes. The calculator shows the subtraction so you can verify it; run the numbers through the tool instead of re-adding in your head.
This is exactly why the calculator exists: 'about three and a half hours' is a $40 ticket when the meter maid disagrees. Exact minutes, one subtraction, no guessing.
Elapsed Time vs. Clock Time
Minutes between two times is elapsed time, a duration, not a clock reading. The distinction matters when time zones and daylight saving enter. A flight leaving 1:30 AM and landing 3:30 AM on the spring-forward night took one hour, not two; the clock skipped an hour. Scheduling tools handle this with time-zone-aware math, but hand calculations across a DST boundary need the adjustment added manually.
For payroll and billing, elapsed time is the only accurate number. "9 to 5" on the clock is 8 hours elapsed minus the lunch break, and the break is the part timesheets most often forget. Convert the exact elapsed minutes to decimal hours before multiplying by any rate.
Common Time-Difference Mistakes
First: the AM/PM mixup. 12:30 AM and 12:30 PM are twelve hours apart; entering one for the other doubles or zeroes the result. Use 24-hour time when it matters. Second: the overnight assumption. 10 PM to 6 AM is 480 minutes only because the calculator wraps past midnight; a naive subtraction gives negative 960.
Third: the decimal trap. 90 minutes is 1.5 hours, not 1.90; minutes are sixtieths, not hundredths. Fourth: forgetting the break. Shift math without subtracting lunch overpays hours and shortchanges people. Fifth: second-guessing the tool. The worked example above shows manual math going wrong on a simple case; run the numbers through the calculator and check the method box instead of re-adding in your head.
Worked Example: The Layover Calculation
Flight lands 2:35 PM, connection departs 4:50 PM. The gap: 4:50 PM minus 2:35 PM is 2 hours 15 minutes, or 135 minutes. In an unfamiliar airport, subtract 30 minutes for deplaning and 20 for security or terminal transit, leaving 85 usable minutes. That is a comfortable layover; under 60 usable minutes is where missed connections live.
The return trip crosses the trickier case: land 11:20 PM, depart 1:05 AM. From 11:20 PM to midnight is 40 minutes, plus 65 minutes to 1:05 AM, totaling 105 minutes. The midnight crossover is the classic error point: subtracting 11:20 from 1:05 directly gives nonsense, so always split at midnight. After subtracting 25 minutes of airport overhead, 80 usable minutes remain. Tight but workable if the terminals are close.
The Midnight Crossover, Explained Deeply
Times after midnight belong to the next calendar day, which breaks naive subtraction. 1:05 AM minus 11:20 PM is not negative 10 hours and 15 minutes; it is 1 hour 45 minutes forward across the day boundary. The reliable method: minutes from the start time to midnight, plus minutes from midnight to the end time. (24:00 β 23:20) + 1:05 = 40 + 65 = 105 minutes.
Digital systems handle this by storing full timestamps, not clock times: 2026-10-16 23:20 to 2026-10-17 01:05 subtracts cleanly. When you only have clock times, attach the dates mentally before computing. Shift schedules, flight itineraries, and broadcast logs all cross midnight routinely, and every one of them needs the two-leg method or a timestamp. There is no shortcut that stays correct.
Minutes vs. Hours-and-Minutes: Which Format Where
Total minutes (135) win for math: adding, comparing, and billing all go faster in a single number. Hours-and-minutes (2h 15m) win for humans: nobody visualizes "135 minutes until boarding" as quickly as "2 hours 15 minutes." The right format depends on the consumer: formulas and timesheets want minutes, people want hours and minutes.
Conversion is trivial but worth stating: divide minutes by 60 for hours, keep the remainder. 135 / 60 = 2 remainder 15. For billing at 15-minute increments, round the minute total first (135 β 2.25 hours), then multiply by the rate. State which format a field expects; a timesheet column labeled "hours" that receives "135" instead of "2.25" creates exactly the payroll mess you would expect.
Pro Tips for Shift Workers
Always include the date with overnight shifts. "11 PM to 7 AM" is ambiguous on paper; "Oct 16, 11 PM to Oct 17, 7 AM" is not. Payroll disputes over overnight hours almost always trace back to a missing date, and the fix costs nothing.
Track breaks separately from the shift span. An 8-hour shift with a 30-minute unpaid break is 7.5 paid hours, and lumping them together either underpays you or overbills the client. Two numbers (span and breaks) compute cleanly; one blended number does not.
Frequently Asked Questions
How many minutes are between 9 AM and 5 PM?
480 minutes, or 8 hours. Enter the two times above for any pair; the calculator also shows the hours-and-minutes form and the total in seconds. The hours-and-minutes line reads naturally for schedules, while the minute count suits math.
How do you calculate minutes across midnight?
Subtract as usual, and if the result is negative add 1,440 (24 hours in minutes). From 10 PM to 6 AM: 360 - 1,320 = -960, plus 1,440 = 480 minutes. The calculator does this automatically and flags the overnight span. The calculator adds 1,440 minutes automatically and flags the span so nothing is misread.
How many minutes are in a workday?
A standard 8-hour day is 480 minutes, before lunch. A 9:30 to 5:45 day with no break is 495 minutes. Enter your actual clock-in and clock-out times for your exact figure. Subtract a lunch break separately if you need net working time rather than gross.
What is 495 minutes in hours?
8 hours and 15 minutes, or 8.25 decimal hours. Divide by 60 for hours; the remainder is the minutes. Divide the minute count by 60 and keep two decimals for clean payroll figures.
How many minutes are in 24 hours?
1,440. In a week, 10,080. These are the constants the overnight math is built on. Memorize 1,440 and 10,080 and a surprising amount of time math becomes mental.
Can the start and end be the same time?
Yes, and the result is zero minutes. If you mean a full 24-hour span, that is 1,440 minutes; enter times one minute apart or just use the constant. For a true 24-hour span, enter times one minute apart or simply use 1,440.
How do I convert the result for payroll?
Divide minutes by 60 to get decimal hours, then multiply by the hourly rate. 495 minutes at $20/hour is 8.25 x 20 = $165. Round per your employer's policy, usually to the quarter hour. Multiply decimal hours by the rate, then round once at the end per employer policy.
Does this handle seconds?
The inputs are hour:minute, so seconds are not part of the calculation. For second precision, use the time-subtraction tool with seconds fields instead. Switch to the subtract-time tool when you need second precision or negative durations.