date/

Days and workdays between dates, date arithmetic, and age / star sign / Chinese zodiac. Uses your local date.

Workdays count Monday to Friday only; public holidays are not excluded

Days between dates

Start End Include start and end dates (+1 day)

Add / subtract

Date Add

Use a negative number to go back. When adding months or years, if the target month has no such day, the last day of that month is used: 1-31 + 1 month = 2-28 (2-29 in leap years).

Age calculator

Born As of

People born on 2-29 celebrate on 2-28 in common years. The Chinese zodiac uses the Gregorian year; if you were born before Chinese New Year, take the previous year's animal.