โฑ๏ธ Add / Subtract Time
Enter a start date/time and the duration to add or subtract.
Add/Subtract Durations & Calculate Time Differences
Enter a start date/time and the duration to add or subtract.
Find the total difference between two date/time values.
The Toolmorph Time Calculator helps you add or subtract durations from a given timestamp and compute precise time differences between two dates or times. It's ideal for schedule planning, project tracking, workout logs, billing, and time zone coordination. Everything runs locally in your browser for speed and privacy.
The tool uses your device's local time zone. For cross-zone planning, convert one time to your local zone first.
Yes. The calculator supports full date-time math across days, months, and years.
No. All inputs remain in your browser and are never uploaded.