World Clock Dashboard
Live time across every timezone. Plan meetings, track teams, and never miss a beat.
Meeting Planner
Find overlapping business hours (9 AM – 5 PM) for all displayed cities.
How to Use the World Clock
Search for any city from our database of 100+ locations, or use the preset buttons to quickly load common office groups. Each clock card shows an analog clock face with smoothly rotating hands, the digital time, day/night status, DST indicator, and the time difference from your local timezone.
Click the ★ icon on any clock to save it to your favorites. Your favorites are stored locally in your browser and will appear the next time you visit.
Meeting Planner Tips
When scheduling across more than 3 time zones, the overlapping window shrinks fast. For US + Europe calls, aim for 9–11 AM Eastern. For Europe + Asia, try 8–10 AM Central European Time.
- Add cities first: The meeting planner analyzes whichever cities are currently displayed on the dashboard.
- Green blocks indicate hours where all cities are within 9 AM – 5 PM business hours.
- Hover any block to see the local time in each city for that hour.
Frequently Asked Questions
How does the World Clock Dashboard update the time?
The dashboard updates every second using your device's system clock and the JavaScript Intl.DateTimeFormat API, which accurately converts your local time into each city's timezone. No internet connection is needed after the page loads.
Does the world clock account for Daylight Saving Time?
Yes. The dashboard uses IANA timezone identifiers (like America/New_York) which automatically handle DST transitions. A DST indicator badge appears next to cities currently observing daylight saving time.
How does the meeting planner find overlapping business hours?
The meeting planner compares standard business hours (9 AM to 5 PM) across all selected cities. It highlights the hours where every selected city falls within that 9-to-5 window, making it easy to schedule calls across time zones.
Can I save my favorite cities?
Yes. Click the star icon on any city clock to add it to your favorites. Your selections are saved to your browser's localStorage so they persist between visits. You can also use preset groups like US Offices, European Offices, or Asian Offices for quick setup.
What do the day and night indicators mean?
The sun icon indicates daytime (6 AM to 6 PM local time) and the moon icon indicates nighttime (6 PM to 6 AM local time) in that city. The clock card background also subtly shifts to reflect day or night conditions.