Date & Time

Calculate exact age in years, months and days between a date of birth and any date — handy for exam eligibility.

Convert a Unix timestamp to a human-readable date and time, or a date back to epoch seconds and milliseconds, with the current timestamp live.

Find the exact number of years, months, weeks and days between any two dates.

Estimate your due date and current week of pregnancy from your last period or conception date.

Add or subtract hours, minutes and seconds across multiple rows to get a running total.

Calculate hours worked between a start and end time, minus a break.

See the current live time in multiple time zones side by side, and add or remove cities.

Convert any date and time between time zones, with your zone detected automatically and your choices remembered.

A simple countdown timer and stopwatch, right in your browser.

A focus timer using the Pomodoro technique — 25 minutes of focus, 5 minutes of break.

Count business days between two dates, excluding weekends.

Find the ISO 8601 week number for any date.

Count the days, weeks and working days left until any date — a trip, a deadline or a festival.

Find out how many days, months and years have passed since any date.

Find how many days are left until your next birthday and the age you will turn.

Count the days, weeks and working days left until your wedding.

Count down to any event — a launch, a trip or a party — in days, weeks, working days and hours.

Count the days left to your exam, with weeks and working days, so you can plan your revision.

Add or subtract years, months and days to any date and see the resulting date and weekday.

Find the best bedtime or wake-up time using 90-minute sleep cycles.

Find your last working day and the buyout amount from your resignation date and notice period.

Work out your leave balance from your yearly entitlement, months worked, leaves taken and carry-forward.

Add up working hours across days from start and end times and breaks, with overtime and pay.