Date & Time
Days between dates, working days, age, half birthdays, time zones and Unix timestamps.
6 tools, free and running in your browser.
Half Birthday Calculator
Your half birthday by both definitions, with a countdown and the next ten.
Epoch & Unix Timestamp Converter
Unix timestamps to dates and back, in any unit.
Date Duration Calculator
Count the days between two dates, both ways.
Age Calculator
Work out an age, or the gap between two people.
Working Days Calculator
Working days, your weekend, your public holidays.
Time Zone Converter
Convert between zones and UTC, with a live UTC clock.
All tools run in your browser. We never upload your files.