Date & Time

Work with dates, durations, timestamps, and time zones.

Pick a date calculator for calendar intervals, a timer for elapsed time, or a world clock for the current time in another city. Time-zone conversion depends on the date because daylight saving rules can change the offset; check both the local date and time when scheduling across regions.

Read the practical guide for this category.

Dates

Calculate exact age in years, months, and days from a date of birth.

Date Difference Calculator

Find the number of days, working days, and the y/m/d span between two dates.

Time Zones

Time Zone Converter

Convert a date and time from one time zone to another.

Timestamps

Unix Timestamp Converter

Convert Unix timestamps to human-readable UTC dates and see the current epoch time.

Utilities

Countdown Timer

Set a countdown for any duration and get an alarm when time runs out.

Focus in 25-minute sprints with short breaks — a customizable Pomodoro timer.

See the current time in major cities around the world at a glance.

Public Holiday Calendar

Find public holidays by country and region, then download a calendar file.

Related categories

Finance & Investment Unit Converters Developer Tools Color Tools Text Tools Currency Health & Fitness Image Tools PDF Tools Everyday Info