30 Minute Timer

Half an hour is a cornerstone duration for productivity and daily routines. Use a 30-minute timer for deep work sessions, lunchtime workouts, or slow-cooking tasks like braising and simmering. It's a popular duration for guided meditation apps, podcast episodes, and classroom lesson segments. Health experts recommend standing or moving for at least a few minutes every 30 minutes of sitting. This free 30-minute browser timer uses background-safe absolute timestamps and plays an alarm when complete. No downloads, no sign-ups, no ads — just a clean countdown that works on any device.