48 Minute Timer
This free 48 minute timer is ready to go — the countdown is already set to 48 minutes. Press Start and watch it tick down; a built-in alarm sound plays at zero. No download, no signup; works on desktop and mobile.
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 48 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 48 minutes?
48 minutes works out to 2,880 seconds, or about 80% of an hour. That is roughly 3.3% of a 24-hour day. Half of 48 minutes is 24 minutes, and two rounds back to back add up to 1 hour 36 minutes.
Things that take about 48 minutes
- Block 48 minutes for deep work — long enough for real progress, short enough to stay sharp.
- Do a full 48-minute gym session, yoga class or long run.
- Sit a 48-minute practice exam under honest timed conditions.
- Hold a meeting or webinar to exactly 48 minutes so it doesn't swallow the day.
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 48 minutes?
48 minutes equals exactly 2,880 seconds (48 × 60).
What fraction of an hour is 48 minutes?
48 minutes is about 80% of an hour (48/60).
Can I restart the 48-minute countdown when it finishes?
Yes. When the alarm sounds, press Reset and then Start to run the full 48 minutes again — handy for repeated rounds.