Dates and time

12 primary tools

Dates, durations, working days, stopwatch and timer. Choose a tool and read its instructions, examples and limits before you begin.

Online stopwatch

Measure time with pause, resume and lap times.

Online countdown timer with pause, resume and an optional sound.

Calculate calendar days between two dates, with an inclusive end-date option.

Count working days with Italian or custom holidays and optional working Saturdays.

Add and subtract durations in hours and minutes, with decimal-hour totals.

Calculate worked hours from intervals, overnight shifts and additional breaks.

Convert hours, minutes and seconds in either direction. Enter a duration, see the conversion steps and get the result in your chosen unit.

Choose an event date, time and time zone. Watch the days, hours, minutes and seconds remaining update in a live countdown.

Choose two cities and a date to convert the time. See the local time, the time difference, and whether the destination falls on another day.

Add or subtract days from a date and find the resulting date and weekday. Includes weekends, holidays and leap years, with no registration.

Calculate age from a date of birth in years, months and days. Choose a reference date and see the number of days until the next birthday.

Alternate focus and breaks with custom durations, cycle counts, pause and resume. The timer runs in your browser.