Instructions
Add or subtract time
How to use
Enter the start time, choose add or subtract, and set the hours and minutes.
Enter the start time, choose add or subtract, and set the hours and minutes.
Supported input
24-hour HH:MM. If the result crosses midnight, the day offset is shown.
Input example
22:30 + 3 h 45 min
Result example
02:15 (1 day later)
Troubleshooting
Values that are not numbers or are out of range are not calculated; the message says what to fix.
Limitations
Time zones and daylight saving are not considered.
How it works
Adds or subtracts hours and minutes from a time and says whether the day changes. 24-hour HH:MM. If the result crosses midnight, the day offset is shown.
Units & precision
24-hour HH:MM. If the result crosses midnight, the day offset is shown.