Add or Subtract Time

All tools

Add or subtract hours, minutes and seconds from any start time and get the result in 24-hour and 12-hour formats, plus a note if it crosses midnight. Free and instant.

Resulting time –
In 24-hour format –
In 12-hour format –
Total duration –
Day change –
Time wraps around a 24-hour clock; the day-change note shows whether the result lands on the same day, the next day or a previous day.
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