World Clock - Live Current Time in Multiple Cities

Check the current time in multiple cities at once with a live world clock

This world clock shows the live current time in major cities such as Tokyo, New York and London at the same time, down to the seconds. Each city updates every second in real time, so it's ready for checking time differences with overseas clients or family, and for keeping an eye on teams across multiple locations. There's nothing to install; it works in any browser, on desktop and mobile.

How to add, reorder and remove cities to build your own world clock

Pick a Region, then a City / time zone, and press 'Add city' to add the places you care about (for example Asia/Tokyo, America/New_York or Europe/London). Use the up and down buttons on each row to reorder, and the × button to remove, so you can arrange your own time-zone list in the order you use most. Your cities are saved in this browser, so the same world clock is shown next time you visit.

Daylight Saving Time (DST) and time differences are handled automatically

Each city's time is calculated including its Daylight Saving Time (DST) transitions, so cities like New York and London that shift between summer and winter always show the correct current time and offset. Each city also shows the time difference relative to your own location (your device's time zone), so you can tell at a glance what time it is over there and what a meeting time means for the other side.

Check your local current time to the second with automatic time-zone detection

The list also shows your local current time — detected automatically from your device's (browser) time zone — down to the seconds, updating live every second. As a digital clock that ticks every second, it works for setting your watch, syncing the start of an online meeting, or counting down the final seconds of an auction or trade. Your local time is marked as 'Same as your location', so you can compare it with each city at a glance, and you can add or adjust it manually by picking a Region and city if auto-detection is off.

Your location and time-zone data are never sent to a server (runs in your browser)

The world clock's time calculation and time-zone detection happen entirely inside your browser (client-side). Your location, time-zone data and the list of cities you add are never sent to sakutto's servers. Unlike ad-heavy world clock sites, this page keeps the screen clean so you can keep it open or bookmark it with peace of mind.

Use cases for a world clock: time differences and overseas meetings

A world clock helps with checking time differences, scheduling remote meetings, looking up the current time at a travel or business destination, tracking overseas market hours (stocks, FX, crypto), and finding a reasonable time to contact family and friends abroad. If you only need a seconds clock for your own location, try the current time tool, and explore handy date and text utilities such as era conversion and a character counter too.

FAQ about the world clock and your current time

How accurate is the current time shown for each city in the world clock?

Each city's time is based on your device's clock and calculated in real time using that city's time zone and Daylight Saving Time (DST), updating every second. As long as your device clock is synced (for example via NTP), each city shows a very accurate current time.

Can I add as many cities as I want and reorder them?

Yes. Pick a Region, then a City / time zone, and press 'Add city' to add as many as you like. Use the up/down buttons to reorder and the × button to remove. Your world clock list is saved in this browser and shown in the same order next time.

Are time differences shown correctly for cities on Daylight Saving Time?

Yes. Each city's DST transitions are applied automatically when calculating the current time and offset, so cities like New York and London that change between summer and winter always show the correct time and difference.

Do I need to sign up? Is it free?

It's completely free with no sign-up. No account or email is required — the multi-city world clock works the moment you open the page.

Can I just see my local current time to the second?

Yes. The world clock list also shows your local current time, detected automatically from your device's time zone, down to the seconds in real time. It's marked as 'Same as your location', so it works as a standalone current-time seconds clock. If auto-detection is off, pick a Region and city to add or adjust it manually.