Do the timers keep running if I switch tabs?

Yes. The timers and stopwatch track elapsed time accurately even if the tab is in the background, and alarms ring when the time is up.

Are the world clock and time zone tools automatic?

They use your device's clock and the standard time zone database, so daylight saving changes are handled for you.

Are these time tools free?

Yes, all of them are free with no sign-up, and they run entirely in your browser.

Time & Time Zones

Time tools

Everything for working with time: world clock, time zone converter, meeting planners, plus timers, stopwatches, and a Pomodoro clock. Free and private in your browser.

World Clock

Current local time in major cities worldwide.

Time Zone Converter

Convert a date and time between cities and zones.

Meeting Time Planner

Rank the best meeting times across time zones.

World Time Overlap

Find overlapping working hours for remote teams.

Time Duration Calculator

Exact duration between two times in hours and minutes.

Add / Subtract Time

Add or subtract hours and minutes from any time.

Online Timer

Full-screen countdown timer with alarm and presets.

Stopwatch

Precise stopwatch with lap and split times.

Pomodoro Timer

Focus and break cycles to stay productive.

Countdown Timer

Live, shareable countdown to any date and time.

Alarm Clock

Set labelled alarms that ring in your browser.

UTC Time Now

Current Coordinated Universal Time.

Frequently asked questions

Do the timers keep running if I switch tabs?: Yes. The timers and stopwatch track elapsed time accurately even if the tab is in the background, and alarms ring when the time is up.
Are the world clock and time zone tools automatic?: They use your device's clock and the standard time zone database, so daylight saving changes are handled for you.
Are these time tools free?: Yes, all of them are free with no sign-up, and they run entirely in your browser.