Date & Time Tools

All of our calculators and utilities in one place.

Time Between Dates

Calculate the time between any two dates with optional time inputs.

Convert between seconds, minutes, hours, days, weeks, and years.

Countdown to any holiday — Christmas, Thanksgiving, Diwali, and more.

Create a countdown to any important date. Pick a date and optionally a time to see exactly how many days remain.

Convert Unix timestamps to human-readable dates and vice versa.

Convert times between different timezones around the world.

Find the ISO week number for any date.

Add or subtract days, weeks, or months from any date.

Check if any year is a leap year and see upcoming leap years.

Find out what day of the week any date falls on.

Generate a printable calendar for any month or year.