World Clock

Every timezone you care about, live

Add any IANA timezone and the clock updates every second, showing the local time, date and UTC offset for each. Your selection is stored locally so it persists between visits.

It's perfect for remote workers, travellers and anyone with friends, family or colleagues around the world.

Great for

• Tracking time for a distributed team
• Keeping tabs on family abroad
• Planning travel across timezones

Key features at a glance

• Live time in as many timezones as you like, side by side
• Shows local time, date, and UTC offset for each
• Add any IANA timezone or city
• Your selection is saved in your browser
• Updates every second
• Works offline once the page has loaded

Why a world clock is essential today

Remote work, global teams, and worldwide friendships have made knowing the time elsewhere a daily need rather than an occasional curiosity. A world clock that shows several zones at once turns a constant mental calculation into a glance: you immediately see whether a colleague in another country is at their desk, whether it is too late to message family abroad, or how a global schedule lines up.

Unlike a one-off conversion, a persistent world clock keeps the zones you care about always visible and always current. Because the times tick live and the display includes each location's date and offset, you also catch the cases that trip people up — when it is already tomorrow somewhere, or when a region has just shifted for daylight saving. It is a small tool that quietly removes a lot of friction from working and living across borders.

Understanding UTC offsets and the date line

Each zone on the clock shows its offset from UTC, the global reference time, which makes the relationship between locations explicit. A city at UTC+9 is nine hours ahead of UTC and, for instance, fourteen hours ahead of a city at UTC−5. Seeing the offsets makes it easy to reason about how far apart two places are without doing the arithmetic in your head.

Spanning enough zones also brings in the International Date Line, where the calendar day changes. Locations on opposite sides of it can be nearly a full day apart, so it can genuinely be Monday evening in one city and Tuesday afternoon in another. A world clock that shows the date alongside the time makes these crossings obvious, preventing the classic mistake of scheduling something for 'today' that has already passed where the other person lives.

Why local storage makes it personal

A world clock is most useful when it shows exactly the places that matter to you, and this one remembers them. The zones you add are saved in your browser's local storage, so your personalized clock is ready every time you return, with no account to create and no settings to redo. It quietly becomes your own dashboard of the locations in your life.

Because the configuration lives locally rather than on a server, your list of cities — which can hint at where your contacts, family, or business interests are — stays private to your device. There is nothing to sign up for and nothing shared. You simply build the clock once, and it persists, combining convenience with privacy in a way a generic clock cannot.

Tips for using the world clock

• Add the home cities of your team, clients, family, and friends
• Watch the offsets to gauge how far apart two places are
• Note when the date differs to avoid scheduling something already past
• Keep a UTC entry as a neutral reference point
• Glance before messaging to avoid contacting someone at a bad hour

Why choose our world clock?

Our world clock is completely free with no signup, no limits, and no subscription. It runs entirely in your browser, updates live, works offline, and saves your zones locally so nothing is sent to a server.

It is one of more than 200 free tools on ToopTools, and you can pin it to your My Workspace, a personalized workspace where you keep the tools you use most in a single dashboard. Beside the timezone converter and other time tools, it keeps the world's clocks at your fingertips.

Common use cases

People use the world clock to track time for a distributed team so they know who is online, to keep tabs on family and friends in other countries, and to plan travel across multiple time zones. It keeps every location that matters visible at once.

Remote workers check colleagues' hours before messaging, traders and gamers track market or server times, and frequent travelers monitor home and destination times together. Because the clock is live and personalized, it answers 'what time is it there right now?' instantly.

Is the world clock free?

Yes. It is completely free with no account, no sign-up, and no usage limits. Track as many timezones as you like at no cost.

Are my added timezones saved?

Yes. The zones you add are stored in your browser's local storage, so your personalized clock is exactly as you left it the next time you visit, with no account required.

How many timezones can I add?

As many as you like. The clock displays all your chosen zones side by side and updates each one every second, so you can track a large set of locations at once.

Does it update automatically?

Yes. Every clock ticks live, updating every second, so the times are always current without needing to refresh the page.

Does it handle daylight saving time?

Yes. Each zone uses the IANA timezone data built into your browser, so daylight-saving changes are reflected automatically and the displayed local times stay correct year-round.

Is my list of cities kept private?

Yes. Your selection is stored only in your browser and never uploaded, so the locations you track stay private to your device, and the clock works without an internet connection.

How do I see the current time in different cities?

Search for and add the cities you care about, and the world clock shows the current local time in each one side by side, updating live. Your list is saved in your browser, so the same cities are waiting next time you open it.

Does the world clock work offline?

Yes. The clock reads your device's time and built-in time zone data, so once the page has loaded it keeps working without an internet connection, and your list of cities is never uploaded — it stays private on your own device.