Date and time calculators
Countdowns, weeks and months between dates, week numbers, ages, workdays and hours — every date question in one place.
- Age calculatorExact age in years, months and days.
- Days between dates calculatorDays, weeks, months and working days between two dates.
- Add days to a dateDate after adding or subtracting days, weeks, months or years.
- Workday calculatorWorking days between two dates, or a date after N working days, with public holidays.
- Hours calculatorHours and minutes between two times, minus breaks.
- Days until calculatorCountdown in days, weeks and months to any date.
- Days until ChristmasChristmas countdown in days, weeks and hours.
- Days until New YearNew Year countdown in days, weeks and hours.
- Days until HalloweenHalloween countdown to 31 October.
- Days until Valentine's DayCountdown to Valentine's Day, 14 February.
- Days until EasterCountdown to Easter Sunday, which moves every year.
- Days until ThanksgivingCountdown to US Thanksgiving, the fourth Thursday of November.
- Days until summerCountdown to the first day of summer (21 June).
- Days until RamadanCountdown to the expected first day of Ramadan.
- Days until DiwaliCountdown to Diwali, the festival of lights.
- Days until Chinese New YearCountdown to the Lunar New Year.
- Days until Mother's DayCountdown to Mother's Day (second Sunday in May).
- Days until Father's DayCountdown to Father's Day (third Sunday in June).
- Days until Black FridayCountdown to Black Friday, the day after US Thanksgiving.
- Days until Eid al-FitrCountdown to Eid al-Fitr at the end of Ramadan.
- Days until Eid al-AdhaCountdown to Eid al-Adha (Feast of Sacrifice).
- Weeks calculatorWeeks between two dates, or add and subtract weeks.
- Months calculatorMonths between two dates, or add and subtract months.
- Days to weeks, months and years converterConvert days, weeks, months and years into each other.
- Week number calculatorWhat week is it? ISO week number for any date.
- Day of the week calculatorWhat day of the week was or will be any date?
- Time calculatorAdd or subtract hours, minutes and seconds.