Time Utilities
Free online time utilities including duration calculators, Unix timestamp converters, leap year tools, week number calculators, and more.
- Duration CalculatorBreak the span between two datetimes into days, hours, minutes, and seconds.
- Leap Year CalculatorCheck whether a year is a leap year.
- Days in Month CalculatorFind how many days are in a given month and year.
- Week Number CalculatorGet the ISO week number for any date.
- Quarter CalculatorFind the calendar quarter for any date.
- Unix Timestamp ConverterConvert between Unix timestamps and dates.
Related calculations you may need
Frequently asked questions
Time utilities include tools for durations, Unix timestamps, week numbers, quarters, leap years, and other time conversions.