Time Zone Comparison
Compare up to 8 cities side by side
Asia
Seoul
America
New York
Europe
London
Asia
Tokyo
Hourly Schedule Grid
All cities aligned by current local hour
| Hour | Seoul | New York | London | Tokyo |
|---|---|---|---|---|
| 00 | 00:00 | 11:00 | 16:00 | 00:00 |
| 01 | 01:00 | 12:00 | 17:00 | 01:00 |
| 02 | 02:00 | 13:00 | 18:00 | 02:00 |
| 03 | 03:00 | 14:00 | 19:00 | 03:00 |
| 04 | 04:00 | 15:00 | 20:00 | 04:00 |
| 05 | 05:00 | 16:00 | 21:00 | 05:00 |
| 06 | 06:00 | 17:00 | 22:00 | 06:00 |
| 07 | 07:00 | 18:00 | 23:00 | 07:00 |
| 08 | 08:00 | 19:00 | 00:00 | 08:00 |
| 09 | 09:00 | 20:00 | 01:00 | 09:00 |
| 10 | 10:00 | 21:00 | 02:00 | 10:00 |
| 11 | 11:00 | 22:00 | 03:00 | 11:00 |
| 12 | 12:00 | 23:00 | 04:00 | 12:00 |
| 13 | 13:00 | 00:00 | 05:00 | 13:00 |
| 14 | 14:00 | 01:00 | 06:00 | 14:00 |
| 15 | 15:00 | 02:00 | 07:00 | 15:00 |
| 16 | 16:00 | 03:00 | 08:00 | 16:00 |
| 17 | 17:00 | 04:00 | 09:00 | 17:00 |
| 18 | 18:00 | 05:00 | 10:00 | 18:00 |
| 19 | 19:00 | 06:00 | 11:00 | 19:00 |
| 20 | 20:00 | 07:00 | 12:00 | 20:00 |
| 21 | 21:00 | 08:00 | 13:00 | 21:00 |
| 22 | 22:00 | 09:00 | 14:00 | 22:00 |
| 23 | 23:00 | 10:00 | 15:00 | 23:00 |
Everything You Need for World Time
Built-in tools for comparing, searching, and exploring time zones worldwide
Side-by-Side Comparison
Add any cities and see all their local times at a glance. Instantly spot overlapping business hours for remote teams or international calls.
Smart Search
Type a country name, US state, or time zone abbreviation (PST, KST, GMT+9). Results appear instantly — no page reload needed.
Time Simulator
Drag the slider to any hour and see what time it is everywhere simultaneously. Perfect for scheduling across multiple time zones.
280+ Countries & Regions
Every country, all 51 US states, 13 Canadian provinces, 8 Australian states, and 44 time zone abbreviations — all with live clocks.
Compare Time Zones Side by Side — Free World Clock Tool
Planning a meeting across continents? The HOUR Compare tool lets you line up live clocks for any combination of countries, US states, Canadian provinces, Australian states, and IANA time zone abbreviations — all refreshed every second in your browser with no sign-up required. Unlike a simple time-zone converter that shows a single result, Compare displays every location simultaneously as a scrollable card deck, so the right meeting slot jumps out at a glance. Each card shows the current local time, full date, UTC offset, and a ±Xh badge relative to your own device clock. Because all calculations run on the Intl API built into every modern browser, the tool works completely offline once the page is loaded — useful when you are on a plane or a spotty connection. No ads, no trackers, no data sent anywhere.
How to Compare Time Zones with HOUR
- 1
Open the Compare page
Navigate to hour.flexeam.com/compare/ or click the Compare button in the top navigation bar.
- 2
Add your first city
Click the Add City card and type any country name, US state, Canadian province, Australian state, or time zone abbreviation such as EST or JST. Select the match from the dropdown.
- 3
Add more locations
Repeat the search for each additional city or time zone you need. Cards update in real time — you will see all clocks ticking together simultaneously.
- 4
Find your overlap window
Scan the cards for an hour where every location shows a time between 9 AM and 6 PM. The UTC offset and ±Xh badge on each card make the calculation instant. Remove any location by clicking the × icon on its card.