When it's 9 AM in New York, it's 10 PM in Singapore. There are exactly 2 hours where both sides are awake and working — and if you pick the wrong ones, someone's either half-asleep or resentful. Here's how to find the meeting times that actually work.
The Math Problem Behind Global Scheduling
A four-person meeting across New York, London, Singapore, and San Francisco has a combined timezone spread of 16 hours. When it's 9 AM in New York, it's 2 PM in London, 10 PM in Singapore, and 6 AM in San Francisco. There is no single hour that falls within 9-to-5 for all four cities.
That's not a scheduling failure — it's arithmetic. The goal isn't perfection. It's finding the least-bad option and rotating who takes the hit.
What a World Clock Actually Does for You
A world clock displays the current time in multiple cities simultaneously. But the real value isn't seeing what time it is now — it's scrubbing a timeline to find when business hours overlap across your team's locations.
What Makes WorldClock.lol Different
WorldClock.lol was built specifically for this problem:
- Visual Timeline: Drag to see how times align across all selected cities at any point in the day
- 1800+ Cities: Every city in the IANA timezone database
- Working Hours Display: Color-coded bands show when each city is in business hours
- Shareable Links: Send a link that shows times in each recipient's local zone
How to Find Overlapping Work Hours
The key metric is overlapping work hours — times when all participants are within reasonable hours (typically 7 AM to 9 PM local time). Here's how to find them:
Step-by-Step
- Add Your Cities: Open the meeting planner and add every city where your team members sit.
- Read the Spread: Note the gap between your easternmost and westernmost zones. Under 8 hours? You have options. Over 12? You're doing split meetings or going async.
- Find the Sweet Spot: Drag the timeline to the window where the most cities show green (working hours).
- Rotate the Pain: If no perfect overlap exists, set up a rotation so each region takes the early/late slot in turn.
The Golden Hours
Based on the most common team configurations, these UTC windows tend to hit the most overlap:
| Team Configuration | Best Meeting Window (UTC) | What That Looks Like |
|---|---|---|
| US + Europe | 13:00 - 17:00 UTC | 9 AM - 1 PM ET / 2 PM - 6 PM London |
| US + Asia Pacific | 00:00 - 02:00 UTC | 7 PM - 9 PM ET / 8 AM - 10 AM Singapore |
| Europe + Asia Pacific | 07:00 - 10:00 UTC | 8 AM - 11 AM London / 3 PM - 6 PM Singapore |
| Americas (all) | 17:00 - 20:00 UTC | 12 PM - 3 PM ET / 9 AM - 12 PM PT |
Find your team's overlap in 10 seconds
Add your cities, drag the timeline, and see exactly when everyone is in working hours. Free, no sign-up.
Open the Meeting Planner4 Rules for Global Meeting Scheduling
1. Schedule in UTC, Let Calendars Convert
Never write "9 AM New York / 2 PM London" in an invite — that statement becomes wrong during DST transitions. Pick one timezone (ideally UTC) and let Google Calendar or Outlook handle the conversion for each attendee.
2. Rotate Meeting Times
If Singapore always gets the 10 PM slot while New York meets at 9 AM, you have a fairness problem that will become a retention problem. Rotate weekly or bi-weekly so every region takes a turn with the bad time.
3. Record Everything
For team members who can't attend at reasonable hours, always record meetings and post them with timestamps. A 30-minute recording with chapter markers is more useful than a 3-paragraph summary.
4. Protect the Overlap
If your team has only 2-3 hours of overlap, don't fill those hours with status updates. Reserve synchronous time for decisions that need real-time back-and-forth. Push everything else to async channels.
Common City Combinations
New York + London (5 hours difference)
Best meeting times: 9 AM - 12 PM New York = 2 PM - 5 PM London. The golden slot is 9-10 AM ET / 2-3 PM GMT — both sides are at peak energy. Use the EST to GMT converter to double-check.
San Francisco + New York (3 hours difference)
Best meeting times: 9 AM - 2 PM Pacific = 12 PM - 5 PM Eastern. This is the easiest US corridor — 5 full hours of overlap during business hours.
New York + Singapore (13 hours difference)
Best meeting times: 8 AM New York = 9 PM Singapore (same day). This is a stretch for Singapore. Consider alternating with a slot that's early for New York (8 PM Singapore = 7 AM New York).
What to do next: Open the Meeting Planner, add your actual cities, and screenshot the overlap window. Share it with your team and agree on a rotation before the next scheduling argument starts.
