Time & Date
Convert Unix timestamps and time zones, count the days or business days between dates, work out ages and due dates, explain cron schedules, and plan meetings across time zones.
There are timers too: a stopwatch with laps, countdowns, a world clock and a Pomodoro timer.
Popular time & date
Date Difference CalculatorDays, weeks, months and business days between two dates.Date CalculatorAdd or subtract days, weeks, months or business days from a date.Unix Timestamp ConverterEpoch seconds or milliseconds to readable dates, and back.Time Zone ConverterConvert a time between time zones, daylight saving included.Age CalculatorExact age, total days lived and the next birthday.Countdown TimerA countdown timer with presets, an alarm and a big display.
More time & date
Business Days CalculatorWorking days between dates or from a date, minus weekends and holidays.Cron Expression ParserTurn a crontab schedule into plain English and see its next runs.Days Until CountdownA live, shareable countdown to any date and time.Due Date CalculatorEstimated due date, weeks pregnant, trimester and milestone dates.Julian Date ConverterDates to and from Julian Date, MJD and YYDDD ordinal dates.Leap Year CheckerIs it a leap year? With the rule, next and previous leap years.Meeting PlannerFind the overlapping working hours across time zones.Pomodoro TimerFocus sessions and breaks on the Pomodoro cycle.Sleep CalculatorBedtimes and wake-up times that line up with 90-minute sleep cycles.StopwatchTime anything to the hundredth, with laps and splits.Time Duration CalculatorHours between times, timesheet totals and decimal hours.Week Number CalculatorISO week number of a date, and the dates in any week.World ClockLive local times for your chosen cities around the world.