Time & Date

Calculate durations, differences, and time-related conversions.

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Calculate your exact age in years, months, days, and more. Find out how many days until your next birthday.

Calculate the exact number of days, months, and years between two dates. Also shows weeks, hours, and minutes.

Calculate daily, weekly, monthly, and annual work hours. Estimate pay based on your hourly rate, including overtime.

Calculate the date that is a given number of business days from a start date. Excludes weekends automatically.

Convert between Unix timestamps and human-readable dates. Get the current Unix time or convert any date to a timestamp.

Count down to any date. See remaining days, hours, minutes, weeks, work days, and sleeps until your target date.

Convert times between world cities with an interactive timezone map. See colored timezone bands, city markers, and time differences at a glance.

Check if a year is a leap year, find the next and previous leap years, and see how many leap years are in the century.

Calculate your exact age in days, weeks, months, years, hours, minutes, and seconds. Perfect for milestones and celebrations.

Add N calendar days to a start date (Gregorian, proleptic).

Day of week for any Gregorian date (Sakamoto method).

Educational note on one-hour clock shifts (not a timezone database).

Coming Soon

date time master

time card calculator