How many days until a deadline, what time is the call in Lagos when it is 3pm in Toronto, what weekday was a given date. Months differ in length, leap years happen and clocks change, so these tools follow the real calendar rather than a rough guess.
- Age CalculatorCalculate exact age in years, months, and days.
- Date Difference CalculatorFind the number of days between two dates.
- Time Zone ConverterConvert a time between two time zones.
- Countdown TimerCount down to a date and time you choose.
- StopwatchA simple start, lap, and reset stopwatch.
- Unix Timestamp ConverterConvert Unix timestamps to dates and dates to timestamps, in seconds or milliseconds.
- Meeting Time PlannerFind meeting times that fall inside working hours in two or three time zones.
- Pomodoro TimerFocus sessions with short and long breaks, in a clean timer.
- Add or Subtract DatesAdd or subtract years, months, weeks, and days from any date.
- Business Days CalculatorCount working days between dates or find a date some working days away, skipping holidays.
- Week Number CalculatorFind the ISO week number of any date, or the dates of any week.
- Day of the Week FinderFind out which weekday any date falls on, past or future.
- Days Until CalculatorCount the days until (or since) any date or event.
- Time Card CalculatorAdd up shift hours with unpaid breaks, overtime, and gross pay.
- Pregnancy Due Date CalculatorEstimate a due date from the last period and see trimester dates.
- Sleep CalculatorFind bedtimes or wake-up times that line up with 90-minute sleep cycles.
- Time CalculatorAdd and subtract hours, minutes, and seconds.
- Date Format ConverterSee any date in ISO, US, UK, RFC 2822, ISO week and other formats.
- Leap Year CheckerCheck whether a year is a leap year and find the nearest ones.