A familiar situation
Prüfen Sie schnell, wann eine Schicht, ein Termin oder eine Wartezeit nach einer Dauer endet.
How to use this calculator
- Enter start time, hours, minutes and the remaining inputs.
- Select Calculate to see the answer and its breakdown.
- Keep a scenario, change an input and compare the results.
Use consistent units and check the assumptions below before applying the result.
How time is calculated
Add or subtract clock durations using hours, minutes, and seconds. The output wraps across midnight and separately reports how many whole days the arithmetic crossed. Enter durations as elapsed time, not as local timestamps. 23:30 plus 2 hours 45 minutes is 02:15 the next day. The calculation validates each input and keeps its stated units explicit. Yes. Hours are elapsed duration and may exceed a day. This is an estimate for the stated assumptions; confirm measurements and any applicable professional or local standards before relying on it.
Time Calculator is calculated from the supplied measurement fields using the units shown.23:30 plus 2 hours 45 minutes is 02:15 the next day.
Assumptions & useful context
The result depends on the values you enter and the method described above. Displayed numbers may be rounded; calculations use the unrounded values. Check that this model matches your situation before relying on it.
Frequently asked questions
Can hours exceed 24?
Yes. Hours are elapsed duration and may exceed a day.
Does this account for time zones?
No. It is clock arithmetic; use the time-zone calculator for location conversions.