9 free tools
Date & Time tools
Calculate dates, durations, time zones, timestamps, and working days.
Age Calculator
Calculate exact age in years, months, days, and total elapsed days.
Date & TimeDate Difference Calculator
Find the exact duration between two dates in multiple units.
Date & TimeBusiness Days Calculator
Count weekdays between two dates with optional endpoint inclusion.
Date & TimeDays Until Calculator
Count days, weeks, and hours until any future date.
Date & TimeTime Duration Calculator
Calculate elapsed hours and minutes between two times.
Date & TimeTime Zone Converter
Convert a date and time between popular IANA time zones.
Date & TimeUnix Timestamp Converter
Convert Unix seconds or milliseconds to a human-readable date and back.
Date & TimeWeek Number Calculator
Find the ISO week number, day of year, and quarter for any date.
Date & TimeDate Add or Subtract Calculator
Add or subtract days, weeks, months, or years from a date.
Date & Time