Classroom and focus tool
Study Timer
Plan structured study sessions. Configure study and break durations, choose a fixed number of sessions or repeat until stopped, and see the current phase and completed session count. Use editable example schedules like 25/5 or 50/10, add an optional subject label, and choose automatic or manual start for each next phase. The planned total duration is shown for finite schedules. Configuration and active state are saved locally, and the timer recovers correctly after a background tab without duplicate or missed transitions.
Ready
25:00
Session 0 of 4 · 0 completed
Study schedule
Example schedules
Planned total: 01:55:00 (no final break)
Sound alerts
Alerts play for 2.4 seconds. Alerts may not play if your device is locked, asleep, or the browser is suspended.
Your schedule and active state are saved in this browser only. The final break is not included in the plan.
How to use this timer
- Set your duration or choose a practical preset.
- Press Start when you are ready. Pause and resume whenever you need.
- Use Reset to return to the configured starting point.
Related timers
ADHD Visual Timer
A calm, single-task timer with optional focus presets, preparation period, break, and distraction-reduced display.
Classroom Transition Timer
Build an ordered sequence of timed activities with auto or manual advance, pause, skip, and optional step sounds.
Repeating Timer
Cycle through work and rest intervals with configurable duration, rest, cycle count, and phase alerts.