📅 Date & Time calculators

Ages, date differences and countdowns.

Calculate your exact age in years, months, days — plus live hours, minutes and seconds — from your date and time of birth.

Find the number of days, weeks, months and years between two dates.

Work out the hours and minutes between a start and end time — handy for timesheets and shifts. Handles overnight times and unpaid breaks.

Add or subtract days, weeks, months or years from a date to find the resulting date and day of the week.

Count the number of working days (Monday to Friday) between two dates, excluding weekends.

Find out which day of the week any date falls on — past or future — plus the day and week number of the year.

Count down to any future date and time — see the days, hours, minutes and seconds remaining, updating live.

Add or subtract a number of working days (Monday to Friday) from a date, skipping weekends — useful for delivery and deadline dates.