Calendars & day facts
Day of week, leap years, days in a month, printable calendars.
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- Date to Day of WeekTurn a date into its weekday, with the day and week number.
- PopularDay of Week CalculatorFind which day of the week any date falls on.
- PopularDays in Month CalculatorHow many days a month has, plus its working days.
- PopularDays in Year CalculatorDays, weekdays and weekends in any year, counted per weekday.
- PopularLeap Year CheckerCheck whether a year is a leap year, and why.
- PopularMonthly Calendar GeneratorDraw a calendar for any month of any year, starting Monday or Sunday.
- Perpetual CalendarThe calendar for any month of any year, past or future.
- PopularPrintable Calendar GeneratorA clean twelve-month calendar laid out for printing.
- PopularYearly Calendar GeneratorDraw all twelve months of any year on one page.
More in Date & Time
- Days between dates Days, weeks, months, years, hours or minutes between two dates.
- Age & birthdays Exact age in any unit, and how long until the next birthday.
- Add & subtract time Move a date or a time forward or back by any amount.
- Work hours & shifts Business days, timesheets, overtime, week numbers and quarters.
- Time zone converters IST, EST, PST, UTC, GMT, CET, JST and AEST, in both directions.
- Timestamps Unix epoch, milliseconds, ISO 8601 and RFC 2822.