Hours Between Times — Overnight OK, Free
Find the interval between two clock times for a same-day or overnight schedule. The form is suited to a simple shift comparison rather than a dated attendance record.
- Runs in your browser
- Nothing is uploaded
- No signup; device limits apply
Numbers stay on your device. Nothing is sent to a server.
If the end is earlier than the start, the interval is assumed to cross midnight.
How to use this tool
Enter hours and minutes for the start and end. An earlier end is treated as the following day; split multi-day periods or use a timezone-aware tool for cross-region schedules.
Results and examples
22:30 to 01:00 spans two hours and thirty minutes. Identical start and end values, such as 09:00, produce zero rather than automatically representing a full twenty-four-hour shift.
Limitations
- Break deductions and pay calculations are not included.
- Date-specific daylight-saving transitions are not modelled.
Fields
| Field | Guidance and constraints |
|---|---|
| Start time | Check the unit and format displayed beside this field. |
| End time | If the end is earlier than the start, the interval is assumed to cross midnight. |
Data handling
Processing stays in the current browser tab; the site does not upload tool input for the calculation itself.
Sources
Frequently asked questions
How is an overnight interval handled?
22:30 to 01:00 spans two hours and thirty minutes. Identical start and end values, such as 09:00, produce zero rather than automatically representing a full twenty-four-hour shift.
Do identical times mean a full day?
Break deductions and pay calculations are not included. Date-specific daylight-saving transitions are not modelled.
Related tools
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