30 Minute Timer
Thirty minutes is half an hour, the classic length for a daily walk, a workout, or the 12-3-30 treadmill routine.
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Rings even in a background tab · Space bar = start/pause
What can you do in 30 minutes?
- Half-hour brisk walk
- 12-3-30 treadmill workout
- Marinating shrimp or fish
- Chilling cookie dough
Tip: The CDC's 150 minutes of weekly moderate activity breaks down neatly into 30 minutes on five days.
30 minutes in other units
30 minutes
1,800 seconds
1,800,000 milliseconds
50% of an hour
fits 48 times into a day
Need a different length? Use the custom countdown timer, or set a clock-time alarm instead.
All timers
Seconds
Minutes
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Hours
30-minute timer FAQ
How do I set a timer for 30 minutes?
Press Start on this page. The 30-minute countdown begins immediately — no settings to change. Press the space bar to pause or resume.
Will the 30-minute timer ring if I switch tabs?
Yes. The countdown runs from a fixed end time, so it keeps going and rings in a background tab. The remaining time also shows in the tab title. Keep the tab open and the device unmuted.
Can I get a notification when it ends?
Yes — allow notifications when your browser asks after you press Start. You'll get a desktop or phone notification in addition to the beep.
Does it work offline?
Yes. After your first visit the page is cached, so the timer works without an internet connection.