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Real Online Timer
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Click a number to type it, use arrow keys, or scroll to adjust

Custom duration
Alarm settings

An interval timer for workouts

This page opens set to 30 seconds — a common interval length for HIIT-style work — with the large display mode on by default so the countdown is readable from across a room without your phone in hand.

Common interval lengths

  • 30 seconds — a single HIIT work interval.
  • 1 minute — a longer work interval, or a standard rest period.
  • 5 minutes — a warm-up block or a full circuit before resetting.
  • 10 minutes — a sustained cardio or conditioning block.

Use the quick-add buttons to stretch an interval on the fly if a round is running long, and Add 1 minute straight from the "Time's Up!" screen to extend a round the moment it ends.

Hands-free, screen-on

Switch to fullscreen mode and, on supported devices, the screen is kept from dimming automatically for the duration of your session — one less thing to think about mid-set.

Related timers

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Meditation Timer

A calm, distraction-free meditation timer with a gentle alarm and minimal display mode — nothing to look at but the time remaining.

Fullscreen Timer

A fullscreen online timer with huge, readable digits — built for classrooms, meetings, and stage presentations viewed from a distance.

Frequently asked questions

Can I set up repeating work/rest rounds automatically?

Not yet as a single automated sequence — save your work interval and rest interval as two custom presets, and switch between them with one click each round.

Will the timer keep counting accurately if I set my phone down and walk away?

Yes — the countdown is calculated from a stored end time rather than a number ticking down in memory, so it stays accurate even if the screen locks.