Countdown to a specific date and time with live days, hours, minutes, and seconds display. Perfect for event countdowns and deadlines. Input never leaves your device — everything runs locally in your browser.
Convert between time units including seconds, minutes, hours, days, weeks, months, and years with precise decimal results. Input never leaves your device — everything runs locally in your browser.
Configurable countdown timer with hours, minutes, and seconds input. Features start, pause, and reset controls with visual progress bar. Input never leaves your device — everything runs locally in your browser.
Convert Unix timestamps to human-readable dates and back. Shows UTC, ISO 8601, locale, date, and time formats. Milliseconds, seconds, and ISO 8601 convert both directions with timezone clarity — local math, free, no signup.
Count down the time until any future moment in days, hours, minutes, and seconds — launches, deadlines, events. See 45 days to launch live — free, local, no signup.
Measure exact elapsed time since any moment — days, hours, minutes live. Track 100 days sober to the second — free, local, no signup.
Pick the target date and time in the date-time box — the display ticks live in days, hours, minutes, and seconds. Weddings, launches, exams, and deadlines all work the same way.
No — the target uses your browser's local time with no timezone picker. Enter the event time in your own zone; travelers should re-enter it after changing zones.
No — closing the tab stops the countdown and nothing persists. Reopen the page and press Start Countdown again; it recomputes from the entered date.
No — there is no shareable link; the target lives only in your open tab. Recipients must enter the same date on their own devices.
No. Everything runs locally in your browser. Nothing leaves your device.
Timer
Configurable countdown timer with hours, minutes, and seconds input. Features start, pause, and reset controls with visual progress bar. Input never leaves your device — everything runs locally in your browser.
World Clock
See live times across world time zones with DST handling — schedule global meetings right. Know Tokyo time before calling — free, local, no signup.
Last updated October 2026