Toolkit / Date & Time

Date & Time Tools

Calculate dates, durations, timers, time zones, and timestamp conversions. Pick a tool below to start converting, calculating, generating, or checking your result.

24 tools
Date Difference CalculatorFind days, weeks, months, and years between dates.Works in browserFast pageAge CalculatorCalculate age from date of birth with next birthday details.Works in browserFast pageBusiness Days CalculatorCount weekdays between dates with optional holidays.Works in browserFast pageOnline TimerRun a simple browser timer with saved presets.Works in browserFast pageWorking Days CalculatorCount working days using a weekday work week assumption.Works in browserFast pageDays Until DateCalculate how many days remain until a date.Works in browserFast pageDays Since DateCalculate how many days have passed since a date.Works in browserFast pageWeek Number CalculatorFind the ISO week number for a date.Works in browserFast pageTime Duration CalculatorCalculate duration between two times.Works in browserFast pageTime CalculatorCalculate elapsed time and total minutes.Works in browserFast pageAdd Time CalculatorAdd hours and minutes to a time.Works in browserFast pageSubtract Time CalculatorSubtract hours and minutes from a time.Works in browserFast pageTime Zone ConverterCompare a date and time across time zones.Works in browserFast pageMeeting Time PlannerPreview meeting times across common time zones.Works in browserFast pageWorld ClockView current time in multiple cities and time zones.Works in browserFast pageUnix Timestamp to DateConvert Unix seconds to a UTC date.Works in browserFast pageDate to Unix TimestampConvert a date and time to Unix seconds.Works in browserFast pageBirthday CalculatorFind days until the next birthday and zodiac sign.Works in browserFast pageZodiac Sign CalculatorFind a zodiac sign from month and day.Works in browserFast pagePregnancy Due Date CalculatorEstimate a due date from the last period date.Works in browserFast pageCountdown to BirthdayCount days until the next birthday.Works in browserFast pageCountdown to New YearCount days until January 1.Works in browserFast pageStopwatchRun a simple browser stopwatch.Works in browserFast pagePomodoro TimerRun focus and break timers for Pomodoro sessions.Works in browserFast page