26 free tools
Date & Time
Calculate dates, time differences, business days, time zones, countdowns, and schedules.
Age CalculatorCalculate your exact age in years, months, weeks, days, hours, minutes, and seconds. Free online age calculator.Date & TimeBusiness Days CalculatorCalculate working days excluding weekends and holidaysDate & TimeCalendar GeneratorCreate and customize calendars online. Add events, choose layouts, and export as PDF or image.Date & TimeCountdown TimerSet and track countdown timers with alertsDate & TimeDate CalculatorAdd/subtract days from dates and calculate business daysDate & TimeDate Difference CalculatorCalculate time difference between two dates in multiple unitsDate & TimeDate Range CalculatorGenerate date ranges with custom intervals and calculate durationsDate & TimeDay of Week CalculatorCalculate what day of the week any date falls onDate & TimeTime ↔ Decimal CalculatorConvert between time (HH:MM:SS) and decimal hours for payroll and billingDate & TimeTime ↔ Fractions CalculatorConvert between time and fractions for precise calculationsDate & TimeHoliday CalendarView global holidays and observances by country and yearDate & TimeLeap Year CalculatorCheck if a year is a leap year and find leap years in any rangeDate & TimeStopwatchPrecision stopwatch with lap times and splitsDate & TimeTime Addition CalculatorAdd multiple time values together with precise calculationsDate & TimeTime CalculatorAdd/subtract time values and calculate time durationsDate & TimeTime ConverterConvert between seconds, minutes, hours, days, weeks, and other time unitsDate & TimeTime Difference CalculatorCalculate time differences between dates and times across different time zones. Perfect for scheduling, planning, and coordination.Date & TimeTime Multiplication & Division CalculatorMultiply or divide time values by numbers with precise calculationsDate & TimeTime Since CalculatorCalculate how much time has passed since a specific date or eventDate & TimeTime Subtraction CalculatorSubtract time values from each other with precise calculationsDate & TimeTime Until CalculatorCalculate time remaining until a future date or eventDate & TimeTime Zone ConverterConvert time between different time zones worldwideDate & TimeTimeline GeneratorCreate beautiful timelines for projects, history, or personal events. Customize styles and export as SVG or PNG.Date & TimeTimestamp ConverterConvert UNIX timestamps to human-readable dates and vice versa.Date & TimeWeek Number CalculatorCalculate ISO 8601 week numbers for any dateDate & TimeWorld ClockView multiple time zones simultaneously with world clockDate & Time