Date & Time
Compute with dates: exact age, difference between two dates, Unix timestamp conversion, working days… Fast, accurate and right in your browser.
Age calculator
Your exact age in years, months and days.
Unix timestamp converter
Unix timestamp ⇄ human date (local & UTC).
Date difference calculator
Count days, weeks and months between 2 dates.
Date calculator (± days)
Add or subtract days, weeks, months from a date.
Countdown timer
Days, hours, minutes and seconds until your event.
Time zone converter
What time will it be in Tokyo, New York or Sydney?
Week number
The ISO week of any date, with its boundaries.
Working days
Count the working days between two dates, holidays excluded.
Duration calculator
Add up hh:mm:ss durations: sum, average, total.
Stopwatch
Precise stopwatch with laps and keyboard shortcuts.
Timer
Countdown with presets and a sound alarm.
Pomodoro timer
25 min focus, 5 min break: the Pomodoro method.
Moon phase
The moon phase for any date, with illumination and upcoming full moons.
Sunrise & sunset
Sun times and day length, for your city or your coordinates.
Age on other planets
How old would you be on Mars, Jupiter or Neptune?
Year progress
What percentage of the year has passed? And how many days remain?
Work hours calculator
Compute hours worked (start, end, break) and your daily/weekly pay.
Public holidays
Official public holidays of a country for any year.
On this day
Historical events, births and deaths for a date.
Meeting planner
Find the best time across multiple time zones (24-hour grid).
Calendar event (.ics)
Create an event, download the .ics or add it to Google Calendar.
Unix timestamp converter
Convert a Unix timestamp to a readable date (UTC and local) and back.
Leap year calculator
Check whether a year is a leap year and find the next leap years.
Day of the week
Find which day of the week any date falls on, past or future.
Days until a date
Count the days left until a date (or elapsed since), with weeks and months.
Add or subtract time
Add or subtract hours and minutes from a start time to find the resulting time.
Printable calendar
A month’s calendar, ready to print in one click.