Time Difference Calculator - Chandao Tools

Start time

End time

About this tool:

Select the "Start time" (accurate to seconds).
Select the "End time" (accurate to seconds).
Click "Calculate" to compute the difference between the two times.

How to Use

What this tool does

Calculates the difference between two timestamps (accurate to seconds) and displays days, hours, minutes, and seconds.

Steps

Select the Start time and End time.
Click Calculate to show the exact time difference.
If the end time is earlier, you'll see a warning.

Examples

Start: 2025‑01‑01 00:00:00; End: 2025‑01‑02 12:30:15 → 1 day 12 hours 30 minutes 15 seconds.

Notes

Local time and timezone of your browser are used for calculations.
All processing runs locally; no data leaves your device.