日付・時刻

See the current time across major cities and time zones.

Set a countdown timer with start, pause and reset.

A precise stopwatch with lap times.

Calculate your exact age in years, months and days.

Find the difference between two dates in years, months and days.

Convert Unix timestamps to human-readable dates and back.

Focus with 25-minute work sessions and 5-minute breaks.

Count the number of days between two dates.

Find the ISO 8601 week number for any date.