Run a private duration countdown with pause/resume, a progress display and optional completion sound.
Keep this page open. Closing or switching tools ends this session; it is not saved. Background sleep can delay feedback.
All inputs stay in this page. No uploads or application history. Input edits invalidate generated outputs. Numeric quick sliders never clamp wider exact fields. Duration countdown: nonnegative whole hours 0–9999, minutes/seconds 0–59; total duration must exceed zero. Settings lock during a started session until Reset, then unlock at completion. Pause/resume preserves elapsed time. Timer uses your device wall clock and catches up after delayed display updates; changing the device clock affects it. Keep this page open: sleep/background throttling can delay sound and completion feedback.
Ready. Start when you choose.
| Lap | Split | Elapsed |
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Your dates, clock settings and calendar labels stay on your device. Self-hosted browser code processes the inputs without uploads, accounts or application history. Browser time-zone rules and your device clock are used without remote lookup.
Duration countdown: nonnegative whole hours 0–9999, minutes/seconds 0–59; total duration must exceed zero. Settings lock during a started session until Reset, then unlock at completion. Pause/resume preserves elapsed time. Timer uses your device wall clock and catches up after delayed display updates; changing the device clock affects it. Keep this page open: sleep/background throttling can delay sound and completion feedback.
No. Timers/clocks run only in the active browser page or workspace panel. Closing, Reset or switching tools releases that session. Background throttling and device sleep can delay feedback, and device-clock adjustments affect wall-clock timers. No notification permission, service worker or server alarm is used.
No. Weekend/holiday rules are supplied by you; no regional legal calendar is inferred. Time-zone calculations use the browser’s installed rules. The Meeting planner rejects skipped local times and requires an explicit occurrence for repeated times.
No application input history is stored. Reports/downloads and explicit clipboard copies exist outside the tool when you request them. Clear, Reset, workflow switching and page exit release current application data; this is not a physical memory-erasure guarantee.
