Total time = minutes × 60 + seconds. When remaining time hits zero, three short beeps play. For elapsed time see stopwatch; for a date-based countdown see event countdown.
You enter a duration in minutes and seconds, or select a preset. The tool converts your input to milliseconds, then counts down using your device's internal clock, updating the display every 50 milliseconds. No server connection is needed — everything runs locally in your browser. The countdown uses the Web Audio API to generate alert tones when time expires, and cannot continue if you close or navigate away from the page.
Yes, the countdown keeps running in the background. However, accuracy may vary depending on how aggressively your browser throttles background tabs.
Yes — just enter minutes above 60 in the minutes field. For example, 120 minutes = 2 hours.
Yes, any modern browser supports this countdown timer, including mobile browsers on phones and tablets.
The display flashes and plays three short audio beeps through your device's speakers. Make sure your device volume is not muted.
Yes, click the pause button during the countdown. The remaining time is saved. Click Start again to resume from where you paused.
Estimate only. Results reflect your inputs and standard formulas. Double-check important decisions independently.