Productivity & Focus Tools
100% Client-Side Timezone calculations execute entirely in client-side JavaScript.

Global Time Zone Meeting Planner & Overlap Matrix

Find optimal international meeting hours across global participant cities and timezones

Select Global Participant Time Zones

Toggle cities to calculate mutual 24-hour working hours overlap.

24-Hour Availability Heatmap

Working (9-5) Tolerable Sleep
UTC HourUS WestUS EastLondonIndiaMutual Overlap
00:00 UTC16:0019:0000:0005:300 pts
01:00 UTC17:0020:0001:0006:30-2 pts
02:00 UTC18:0021:0002:0007:30-5 pts
03:00 UTC19:0022:0003:0008:30-2 pts
04:00 UTC20:0023:0004:0009:300 pts
05:00 UTC21:0000:0005:0010:30-3 pts
06:00 UTC22:0001:0006:0011:30-3 pts
07:00 UTC23:0002:0007:0012:30-3 pts
08:00 UTC00:0003:0008:0013:300 pts
09:00 UTC01:0004:0009:0014:302 pts
10:00 UTC02:0005:0010:0015:302 pts
11:00 UTC03:0006:0011:0016:302 pts
12:00 UTC04:0007:0012:0017:300 pts
13:00 UTC05:0008:0013:0018:303 pts
14:00 UTC06:0009:0014:0019:30★ BEST WINDOW
15:00 UTC07:0010:0015:0020:30★ BEST WINDOW
16:00 UTC08:0011:0016:0021:30★ BEST WINDOW
17:00 UTC09:0012:0017:0022:30★ BEST WINDOW
18:00 UTC10:0013:0018:0023:30★ BEST WINDOW
19:00 UTC11:0014:0019:0000:30★ BEST WINDOW
20:00 UTC12:0015:0020:0001:30★ BEST WINDOW
21:00 UTC13:0016:0021:0002:302 pts
22:00 UTC14:0017:0022:0003:300 pts
23:00 UTC15:0018:0023:0004:300 pts

About Global Time Zone Meeting Planner & Overlap Matrix

Eliminate time zone confusion for remote distributed teams. Compare local business hours across London, New York, San Francisco, Tokyo, Mumbai, and Europe, and instantly identify optimal mutual meeting slots.

Key Capabilities & Features

  • Pre-loaded major world hub timezones (PST, EST, UTC, CET, IST, JST, AEST)
  • 24-hour visual availability heatmap matrix
  • Color-coded working hours (09:00-17:00), tolerable hours, and sleep hours
  • Automated identification of top overlapping meeting windows

How to Use Global Time Zone Meeting Planner & Overlap Matrix

1

Select Participant Cities

Toggle the international timezones where your remote team members reside.

2

Inspect 24h Heatmap

Review the 24-hour matrix showing local time in each city simultaneously.

3

Pick Best Window

Select the highlighted Best Window hour slot where all participants are in working or tolerable hours.

Privacy & In-Browser Execution Guarantee

Timezone calculations execute entirely in client-side JavaScript.

Frequently Asked Questions

What is considered an optimal meeting window?

An optimal meeting window occurs when all participants are within standard business hours (09:00-17:00 local time) without forcing anyone into late-night sleep hours.