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
Three bombs are free forever. Want the whole crew? A one-time $4.99 unlock adds the other nine, yours to keep.
🔓 See the full collection