Date & Time
Durations, ages, time zones and timestamps.
20 tools
100% localTime converterSeconds, minutes, hours, days, weeks, months and years.Open100% localDays between two datesExact span between two dates: days, weeks, months, years and business days.Open100% localAge calculatorYour exact age in years, months and days โ and when your next birthday lands.Open100% localAdd or subtract daysWhat date is 45 days out? Add or subtract days, weeks, months or years.Open100% localWeekday of a dateWhich weekday a date fell on, plus ISO week and day of the year.Open100% localBusiness days between datesCount the working days in a period, choosing which days you work.Open100% localUnix timestamp converterTimestamp โ readable date, in seconds or milliseconds, UTC and local time.Open100% localTime zone converterWhat time is it there when it is 3 pm here? Perfect for scheduling a meeting.Open100% localWorked hours calculatorTotal hours in a day including breaks, in decimal form and as pay.Open100% localTime calculatorAdd or subtract h:min:s durations without getting it wrong.Open100% localLeap year checkerIs this year a leap year? And the next ones?Open100% localWeek numberThe ISO week of a date, plus that week's start and end dates.Open100% localCountdown to a dateWhat is left before a deadline, broken down into months, weeks, days and hours.Open100% localPlan a meeting across time zonesOne time where you are, and what it means for every participant โ with the slots that wake nobody up.Open100% localRecurring datesEvery date in a series: each Monday, the 15th of each month, every other Wednesday.Open100% localAdd up durationsA list of h:mm durations, summed, averaged, and converted to decimal for payroll.Open100% localDate format converterThe same date in every format: ISO, French, American, RFC, and spelled out.Open100% localTimer and countdownAn accurate timer with an audible alarm, for cooking, sport or work.Open100% localStopwatchTime something to the hundredth of a second, with laps.Open100% localAdministrative deadline calculatorWhen does a notice period, cooling-off window or response deadline expire?Open