Date & Time Calculators

Free date and time calculators.

All Date & Time Calculators (12)

Calculate exact age in years, months, days and hours from any birthdate.

Find days between two dates or add/subtract time from a date.

Add and subtract time values in hours, minutes and seconds.

Count down days until any future date or event.

Count working days between dates, excluding weekends and holidays.

Find your Western and Chinese zodiac signs from your birth date.

Convert between Unix timestamps and human-readable dates.

Convert times between any two time zones around the world.

Find the ISO week number for any date.

Create a countdown timer to any date and time.

Check if a year is a leap year and find the next leap years.

Calculate years, months and days until your next anniversary.