Time and date tools
Compare time zones, add days to a date, count working days, time something with a stopwatch, and share when you are free.
11 tools
- Timestamp converter
Turn a Unix timestamp into a readable date and back.
- Time zone converter
See one moment in every city you care about, side by side.
- Duration converter
Convert between seconds, minutes, hours, days, and weeks.
- Availability sharer
Pick your free times and share them with a link. No calendar account needed.
- Date calculator
Add days, weeks, or months to a date, or count the time between two dates.
- Calendar converter
Convert dates between the Gregorian, Hijri, Hebrew, Persian, Chinese, and other calendars.
- ISO 8601 duration
Read and write ISO 8601 durations like P1DT2H.
- ISO week number
Find the week number of any date, or the dates in a week.
- Business day calculator
Count working days between two dates, with your own holidays left out.
- Stopwatch and countdown
A stopwatch with laps and a countdown timer that keeps time in a background tab.
- Epoch batch converter
Convert a whole list of Unix timestamps into readable dates at once.
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