25 tools
Time & Dates
Date differences, age, working days, time arithmetic, deadlines and duration conversions.
Tools in this category
- Time & DatesAge CalculatorExact age in years, months and days, plus the days, hours and minutes lived and when the next birthday falls.
- Time & DatesDays Between Dates CalculatorExact number of days, weeks, months and hours between two dates.
- Time & DatesHours Between Two TimesWorked hours from a start time, an end time and a break, in decimal and in hours and minutes.
- Time & DatesStopwatchA stopwatch with lap times, showing the elapsed time in seconds, minutes and hours at once.
- Time & DatesWorking Days CalculatorNumber of weekdays between two dates, both dates included.
- Time & DatesCountdown TimerCounts down to a moment, in days, hours, minutes and seconds, and keeps counting past it.
- Time & DatesPregnancy Due Date CalculatorThe estimated due date from the first day of the last menstrual period, by Naegele's rule.
- Time & DatesAdd or Subtract Days from a DateThe date a given number of days before or after a start date.
- Time & DatesWorld ClockFour clocks side by side, each on its own UTC offset, ticking together with UTC itself.
- Time & DatesFlight Arrival Time CalculatorWhat time you land in local time, and whether it is still the same day, from the departure time, the two time zones and the flight length.
- Time & DatesHours and Minutes to DecimalConvert a duration in hours, minutes and seconds into decimal hours.
- Time & DatesTime Zone Difference CalculatorThe local time somewhere else from a time here and the two UTC offsets, with the day shift.
- Time & DatesAdd Hours and MinutesSum of two durations in hours and minutes, in decimal hours, and the difference between them.
- Time & DatesAdd Working Days CalculatorThe date a given number of working days from a start date, skipping weekends.
- Time & DatesWeek Number and Date InfoISO week number, weekday, day of the year and quarter for any date.
- Time & DatesFlight Duration CalculatorThe real time in the air between two local clock times in two different time zones, with the day change accounted for.
- Time & DatesCalendar GeneratorAny month laid out as a grid, starting on Monday or on Sunday, with the working days and weekend days counted.
- Time & DatesWeek Number to DatesWhich Monday to Sunday a given ISO week number covers, and how many weeks that year holds.
- Time & DatesEaster Date Calculator (and Carnival, Good Friday, Corpus Christi)Date of Easter Sunday in any year from 1583, with the movable holidays that depend on it and the Orthodox Easter date.
- Time & DatesDaylight Saving Time Dates Calculator (When Do the Clocks Change?)The dates when daylight saving (summer) time starts and ends in a given year in the United States and Canada, or in the European Union and the United Kingdom.
- Time & DatesGregorian to Hijri Date Converter (Islamic Calendar)The Hijri (Islamic) year, month and day for a Gregorian date, using the standard arithmetical (tabular) Islamic calendar.
- Time & DatesNth Weekday of the Month Calculator (4th Thursday of November, Last Monday of May)The date of the first, second, third, fourth or last given weekday of a month in any year — the way many holidays and deadlines are defined.
- Time & DatesOrthodox Easter Date Calculator (Pascha) for Any YearThe Gregorian date of Orthodox Easter in a given year, how many days after Western Easter it falls, and the same day in the Julian calendar the Church uses to compute it.
- Time & DatesInternational Meeting Time PlannerFind the hours that suit two or three time zones at once, using the UTC offsets you enter.
- Time & DatesJulian Day ConverterTurn a calendar date into a Julian day number, Julian date or Modified Julian date, and back again.