World Clock

A world clock shows the current local time in multiple locations. It’s useful for remote teams, international family, travel planning, and scheduling meetings without doing manual time zone math.

This world clock updates continuously and lets you build a short list of cities you care about. Your city list is saved locally in your browser.

1. Open Edit cities and add the locations you want to track.
2. Reorder the list so your most important cities are at the top.
3. Toggle options like 24‑hour time and seconds to match your preference.

For a single location, you can also open a city page. If you want a full-screen display for your current location, use the online clock.

While people often say there are 24 time zones, some regions use 30‑minute or 45‑minute offsets. Daylight saving time rules can also change the difference between two cities depending on the date.

If you use world clock often, bookmark this page or pin it as a shortcut so it’s always one tap away. For the best experience, keep the tab open and interact with the controls once so your browser allows audio alerts, permission prompts, or full-screen mode when needed.

For presentations, classrooms, or a second monitor, try full-screen mode. It centers the tool and removes distractions, and the zoom buttons let you fit the display to your viewing distance.

Browsers can throttle timers in background tabs to save battery. These tools keep accurate time by calculating against a stable clock, so even if the UI updates less frequently, the underlying time stays correct when you return.

Many pages are preset links. Sharing the URL is the fastest way to open the same configuration on another device, whether that’s a timer duration, a specific alarm time, or a countdown to an event year.