00:00:00
:
:
hours
min
sec
00:00
00:00:00
When finished
Quick presets
Play sound
Screen colour
Flash screen
Open URL
Show message

⚡ Start timer via URL

Share a direct link that auto-starts a countdown:

datimer.com/500 → 5 minutes
datimer.com/1500 → 15 minutes
datimer.com/10000 → 1 hour
datimer.com/13030 → 1 h 30 m 30 s

Format: digits read right-to-left as HHMMSS. Range: 1235959.

🔒 For your security, completion actions (sound, flash, URL redirect, screen color, message) cannot be configured via URL to prevent potential misuse by third parties. Only the countdown duration can be set via URL.