World Clock - Time in Multiple Cities
See the current time in cities around the world, all at once. Add the cities you care about, drag to reorder them, and use the day/night indicator to spot good times to call - all free, ad-free, and running entirely in your browser.
Quick answer: A world clock shows the current local time in several cities at the same time, using each city's time zone. This tool uses your browser's built-in time zone data, so the times shown are always accurate - including for daylight saving time changes.
New York
USA - UTC-4
Mon, Jun 15
London
UK - UTC+1
Mon, Jun 15
Tokyo
Japan - UTC+9
Tue, Jun 16
Sydney
Australia - UTC+10
Tue, Jun 16
Drag a city card to reorder it. Your selection is saved in your browser for next time.
Last updated: June 15 2026
Reviewed by the QuickTooly Team - led by a Senior Software Engineer specializing in productivity tools, web performance, and technical SEO.
World Clock Guide
What Is a World Clock?
A world clock shows the current local time in multiple cities or time zones at the same time, instead of making you check one city at a time. This is useful whenever you need to know what time it is somewhere else right now - for example, before calling a colleague, scheduling a flight, or checking in with family abroad. If you need to schedule a meeting that works for everyone, try the Best Meeting Time Finder instead.
Unlike a manual time zone converter, where you have to look up offsets and do the math yourself, this tool reads time zone rules directly from your browser's built-in IANA Time Zone Database - the same data source used by every major operating system and browser. That means every time shown here, including daylight saving adjustments, is calculated automatically and kept accurate without any manual conversion.
Why Use QuickTooly's World Clock?
- All cities at a glance: Every city you add is shown side by side and updates live, so you don't have to switch between tabs or apps to compare times.
- Day/night indicator: A sun or moon icon and card color instantly show whether it's daytime or nighttime in each city - handy for spotting reasonable calling hours.
- Drag to reorder: Arrange your cities in whatever order makes sense to you, such as by time zone or by team.
- Always accurate: Times are calculated using your browser's built-in time zone database, which automatically accounts for daylight saving time changes.
- Private & free: Your saved cities stay in your browser's local storage - nothing is sent to a server, and there are no ads, sign-ups, or limits.
Popular Time Zone Differences
Looking for a quick time zone converter to check the time difference between two well-known cities? These standard-time offsets are a good starting point - add both cities above to see the live, DST-adjusted difference for right now.
| City A | City B | Typical Time Difference |
|---|---|---|
| New York | London | London is 5 hours ahead |
| London | Tokyo | Tokyo is 9 hours ahead |
| Los Angeles | New York | New York is 3 hours ahead |
| Sydney | London | Sydney is 9-11 hours ahead |
| Dubai | Mumbai | Mumbai is 1.5 hours ahead |
| New York | Tokyo | Tokyo is 13-14 hours ahead |
| Berlin | Singapore | Singapore is 6-7 hours ahead |
| San Francisco | London | London is 8 hours ahead |
These offsets can shift by an hour during daylight saving time. Add the cities to the clock above for the exact, up-to-the-minute difference.
How to Use the World Clock
- Choose a city from the "Add a city" dropdown and click "Add City".
- Repeat to add as many cities as you need - each one appears as its own card with a live, updating time.
- Check the sun or moon icon on each card to quickly see whether it's day or night in that city.
- Drag any card to reorder your list - for example, grouping cities by region.
- Click the "✕" on a card to remove that city.
- Your list is saved automatically, so it's there next time you visit.
Common Uses for a World Clock
Remote Teams
Keep the local time of each teammate's city visible so you know when they're likely to be online, and avoid messaging someone in the middle of their night.
International Families
Add the cities where family members live to find a good time for a call without doing time zone math every time.
Travelers
Track the time at home alongside your destination's local time, making it easier to plan calls, bookings, and check-ins around both schedules. If you're also working out trip lengths or return dates, the Date Calculator can help with that too.
Tips for Using a World Clock
- Use the offset, not just the icon: The "GMT" offset shown on each card tells you exactly how far ahead or behind that city is from UTC, which is useful for precise scheduling.
- Group by hemisphere: Drag cities so that places with similar time zones sit next to each other, making it faster to compare options.
- Keep your home city pinned first: Add your own city first so every other time is easy to compare against your current time.
- Remember daylight saving: Some regions shift their clocks twice a year - this tool automatically adjusts, so the times shown are always correct for "right now".
Frequently Asked Questions
What is a world clock used for?
A world clock lets you see the current time in several cities at once, which is useful for coordinating with remote teams, calling family abroad, or planning travel across time zones.
Does this tool account for daylight saving time?
Yes. Times are calculated using your browser's built-in time zone database, which automatically applies daylight saving time rules for each city.
Can I add or remove cities?
Yes. Pick a city from the dropdown and click "Add City" to add it, or click the "✕" on any card to remove it.
Can I reorder the cities?
Yes. Drag any city card to a new position to reorder your list however you like.
How does the day/night indicator work?
Each card shows a sun icon during that city's daytime hours (roughly 6 AM to 7 PM local time) and a moon icon during its nighttime hours, with the card's background changing to match.
Is my city list saved?
Yes. Your selected cities and their order are stored only in your browser's local storage and are never sent to a server. Clearing your browser data will reset them.
Is this World Clock free to use?
Yes, it's completely free with no sign-up, no limits, and no ads. Everything runs locally in your browser.
Can I use this as a time zone converter?
Yes. Add the cities you want to compare and the tool shows their current local times side by side, with UTC offsets and daylight saving already applied - which is exactly what a time zone converter does, just updated live instead of for a single point in time.
What is the time difference between two cities?
Add both cities to your list and compare their displayed times directly - the difference between them is the time difference, automatically adjusted for each city's current daylight saving status. See the "Popular Time Zone Differences" table above for common examples.