Choose your bomb
Any bomb you pick runs for 8 minutes. Three bombs are free forever, and nine more are ready whenever you want the whole crew.
Other timer lengths
Eight minutes is the short station. This free 8 minute bomb timer fits center rotations for younger grades, writing warm-ups, partner projects, and the deep-but-not-too-deep cleanup that one shared playroom always needs.
For rotations, eight minutes hits a sweet spot: enough time for real work at each station, short enough to fit four rotations in a typical block with transitions to spare. Tap Run it again between groups and the next crew is on the clock.
Need a rounder number? The 10 minute bomb timer is the classic, and the 5 minute version handles quicker resets. Custom covers any length up to an hour.

Get the full bomb collection
Keep kids focused, engaged, and having fun!
- ✓ Classroom cleanup
- ✓ Math drills & quizzes
- ✓ Transitions & timers
- ✓ Games & brain breaks
One-time purchases, up to 5 devices, and the classroom license covers up to 30 school devices. Secure checkout via Lemon Squeezy.