25 Minute Timer
A 25 minutes countdown timer with sound alert. Press start to begin.
Presets
About the 25 minute timer
Twenty-five minutes is the canonical Pomodoro Technique focus block defined by Francesco Cirillo in the late 1980s. It remains the most widely used productivity interval in the world.
What you can do in 25 minutes
- One full Pomodoro focus block, followed by a 5-minute break
- Writing a first draft without stopping to edit yourself
- A focused study block with notes taken by hand
- Clearing one well-defined slice of a larger project
25 minutes at a glance
| Seconds | 1500 s |
| Hours | 0.42 h |
| Share of one hour | 42% |
| Share of a 24-hour day | 1.74% |
| Full blocks in an 8-hour workday | 19 |
| Full blocks in 24 hours | 57 |
| Equivalent 25-minute Pomodoros | 1 |
Tip: Write your single next action before starting the 25 minutes — deciding what to do while the clock runs is the most common way a Pomodoro gets wasted.
Frequently Asked Questions
How long is a 25 minute timer?
A 25 minute timer runs for 25 minutes, which equals 1500 seconds or 0.42 hours — 42% of an hour.
What can I do in 25 minutes?
One full Pomodoro focus block, followed by a 5-minute break; Writing a first draft without stopping to edit yourself; A focused study block with notes taken by hand; Clearing one well-defined slice of a larger project.
How many 25-minute blocks fit in an 8-hour workday?
An 8-hour workday holds 19 full 25-minute blocks; a full day holds 57.
Is the 25 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.