🏔️ Deep work 90/20 — 90/20
Run a Deep work 90/20 study timer: 90 minutes focus and 20 minutes break. Big countdown + alarm modal + optional notifications.
00:00:00
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90:00
Ready — press Start to begin.
Tip: Keep breaks short. If break is 0, this becomes a single countdown.
Press Start to begin. Keep this tab open for best reliability.
Quick tips
- Start with one clear task (e.g., “finish 10 math questions”).
- During focus time, silence notifications and keep only one tab open.
- During breaks, stand up and reset — avoid social media.
- If you’re tired, reduce the focus block and do more cycles.
Helpful pages
About this study timer
Run a Deep work 90/20 study timer: 90 minutes focus and 20 minutes break. Big countdown + alarm modal + optional notifications. Use cycles for a Pomodoro-like routine, or set break to 0 for a single countdown. The alarm uses sound + an on-page modal, and can optionally send a browser notification.