Dates & time

Age, days between dates, adding days to a date, week numbers, adding up time and Unix timestamps.

9 tools

• Age calculator

  Find your exact age in years, months and days today or on any date, plus total days lived and days until your next birthday.

• Days calculator

  Count the days, weeks and weekdays (Mon–Fri) between two dates.

• Countdown timer

  See how many days, hours, minutes and seconds are left until New Year, a birthday, a vacation or any other date — with a live countdown.

• Date calculator

  Find the date N days, weeks, months or years after a given date — or before it.

• Time calculator

  What time will it be in N hours and minutes, or what time was it N hours ago — with the date and day change.

• Time duration calculator

  How many hours and minutes there are between two times of day — for example, from the start to the end of a shift, even across midnight.

• Time zone converter

  Convert a time from one time zone to several others, with daylight saving time handled automatically — handy for calls and meetings across cities and countries.

• Week number

  What week of the year is it? Get the week number for any date using ISO 8601 or the US system.

• Unix timestamp converter

  Convert a Unix timestamp (seconds or milliseconds since January 1, 1970) to a readable date and time in your time zone and in UTC.