48 Minute Timer
Forty-eight minutes is 80 percent of an hour and the regulation game clock of an NBA game, four 12-minute quarters.
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Rings even in a background tab · Space bar = start/pause
What can you do in 48 minutes?
- NBA regulation game clock
- Deep-work block before a break
- Cleaning a whole bathroom
- Long trail run
Tip: Pair 48 minutes of work with a 12-minute break to fill an hour with a rhythm you can repeat.
48 minutes in other units
48 minutes
2,880 seconds
2,880,000 milliseconds
80% of an hour
fits 30 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
48-minute timer FAQ
How do I set a timer for 48 minutes?
Press Start on this page. The 48-minute countdown begins immediately — no settings to change. Press the space bar to pause or resume.
Will the 48-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.