Date & time

Date calculators: days between dates, age, working days, vacation, time zones.

Days between dates

Calculate the number of days between two dates.

How many days are left until a selected date.

Exact age in years, months, and days.

Number of days lived since birth date.

Working days between dates (weekends excluded).

Return-to-work date after vacation.

Full weeks between two dates.

Find the weekday for any date.

ISO week number of the year.

Convert time between time zones.

Convert Unix timestamp ↔ date and time.