45 Minute Countdown
A free 45 minute countdown timer that opens preset to 45 minutes. Press Start and the big display counts down to zero, then an alarm sounds. Use it for events, livestreams, games and breaks. No download, no signup.
What is this timer good for?
- A deep-work or Pomodoro-style focus block
- A revision or reading session before a rest
- Marinating, proofing dough or slow-roasting
- A full workout or class with warm-up and cooldown
- A longer nap or rest period
How to use it
- The timer opens preset to 45 minutes.
- Adjust the hours, minutes or seconds for a different length.
- Press Start and the big display counts down.
- An alarm sounds at 00:00:00 — press Reset to run it again.
How long is 45 minutes?
45 minutes converts to 2,700 seconds, or about 75% of an hour. That is roughly 3.1% of a 24-hour day. Half of 45 minutes is 22 minutes 30 seconds, and two rounds back to back add up to 1 hour 30 minutes.
Forty-five minutes is one half of a football (soccer) match.
Things that take about 45 minutes
- Sit a 45-minute practice exam under honest timed conditions.
- Hold a meeting or webinar to exactly 45 minutes so it doesn't swallow the day.
- Roast a chicken, bake a casserole or simmer a sauce that needs about 45 minutes.
- Race through a 45-minute house clean, moving to a new room every few minutes.
FAQ
Will it ring if I switch tabs?
Yes. The timer calibrates against your system clock, so it stays accurate even in a background tab. Just don't close the tab.
Do I need to download anything?
No. The timer runs entirely in your browser with no download, signup or plugin.
Can I change the duration?
Yes. Type any hours, minutes and seconds into the fields, or pick a related timer above.
Is it free?
Yes, it is completely free to use.
How many seconds are in 45 minutes?
45 minutes equals exactly 2,700 seconds (45 × 60).
What fraction of an hour is 45 minutes?
45 minutes is about 75% of an hour (45/60).
Can I pause the 45-minute timer halfway through?
Yes. Press Pause at any point and Start to continue; the remaining part of the 45 minutes is kept to the second.