Time Duration Calculator input is rejected
The source data may be incomplete, malformed, or different from the format this tool expects.
Check the input hint, try a small sample first, and correct the source file before running the full job.
Calculate hours and minutes between start and end times for work logs, meetings, shifts, and simple scheduling.
Use this tool
Enter start time and end time. Result: Copy duration in hours and minutes.
Ready.
Duration result appears here.
Tool guide
Use Time Duration Calculator when you need to check, convert, or prepare a file before using it in another app. Review the result before downloading or copying it.
Calculate hours and minutes between start and end times for work logs, meetings, shifts, and simple scheduling.
The source data may be incomplete, malformed, or different from the format this tool expects.
Check the input hint, try a small sample first, and correct the source file before running the full job.
The preview can only use the rows, files, or fields provided in the current browser session.
Confirm that the full source was pasted or selected, then rerun the tool and review the output before downloading.
Some destination systems have rules that are stricter than a browser-local utility can infer.
Use the report as a cleanup checklist and verify the final file in the app where it will be imported or shared.
Yes. Use the overnight option when the end time is on the next day.
No. It calculates the times you enter.