30 Minute Timer
A 30 minutes countdown timer with sound alert. Press start to begin.
Presets
About the 30 minute timer
Half an hour is the length of a standard TV sitcom slot and a common deep-work block for people who find 25 minutes too short. It is also the minimum workout length most guidelines accept.
What you can do in 30 minutes
- One deep-work block with notifications fully off
- A 30-minute home workout or a 5K run for beginners
- Simmering a curry, stew or pot of rice
- A focused language-learning or flashcard session
30 minutes at a glance
| Seconds | 1800 s |
| Hours | 0.50 h |
| Share of one hour | 50% |
| Share of a 24-hour day | 2.08% |
| Full blocks in an 8-hour workday | 16 |
| Full blocks in 24 hours | 48 |
| Equivalent 25-minute Pomodoros | 1.2 |
Tip: Two back-to-back 30-minute blocks with a real break between them outperform a single blurred 60-minute session for most people.
Frequently Asked Questions
How long is a 30 minute timer?
A 30 minute timer runs for 30 minutes, which equals 1800 seconds or 0.50 hours — 50% of an hour.
What can I do in 30 minutes?
One deep-work block with notifications fully off; A 30-minute home workout or a 5K run for beginners; Simmering a curry, stew or pot of rice; A focused language-learning or flashcard session.
How many 30-minute blocks fit in an 8-hour workday?
An 8-hour workday holds 16 full 30-minute blocks; a full day holds 48.
Is the 30 minute timer free and does it make a sound?
Yes — free, no registration, no download, and it plays an alert at zero. Everything runs locally in your browser.