Reliable background timing
Recalculate from an end timestamp when the browser throttles an inactive tab.
Simple, accessible focus timer
Set the work and break rhythm that fits the task, keep the next transition visible, and export a local session summary.
Use the free toolDeadline-based local clock
The timer uses a target timestamp instead of counting fragile browser intervals, so returning to a background tab recalculates the remaining time correctly.
Focus
Next: short break after this focus session
Keyboard: focus the timer panel, then press Space to start/pause or S to skip.
Private by design. Task notes and timer history remain in memory for this tab and are cleared when you reset or close it.
This tab
The jobs this tool completes
Recalculate from an end timestamp when the browser throttles an inactive tab.
Adapt work, short breaks, long breaks, and cycle count rather than enforcing one ritual.
Start, pause, skip, reset, and read the current phase with keyboard and screen-reader status.
Workflow
Learn the details
Plan a focus outcome, choose work and break lengths, handle interruptions, and review completed cycles.
Read guide →GuideUnderstand interval throttling and why a reliable focus timer stores an end timestamp instead of trusting every tick.
Read guide →Common questions
Recalculate from an end timestamp when the browser throttles an inactive tab.
Adapt work, short breaks, long breaks, and cycle count rather than enforcing one ritual.
Start, pause, skip, reset, and read the current phase with keyboard and screen-reader status.
No. The tool completes and explains its calculation or transformation, but another platform can apply different limits, rules, encoders, or policies. Verify consequential output in the destination.
Ready
Return to the tool with your inputs still in this tab.