About

Global Clock exists to answer two questions: what time is it there, and when can we all meet.

What it does

The planner puts up to twelve cities on one 24-hour timeline so a meeting hour can be agreed without arithmetic. The watch view is an ambient panel to leave open on a second monitor. Around them sit 4,449 city pages, one per settlement we track, each with the live local time, the offset in force, the working hours that overlap with yours, and the next clock change.

What it does not do

There is no account, no sign-in and no server-side profile. Your settings and city lists live in your own browser. There is no world map, because a map tells you less about a meeting than a row of hours does.

How it is built

Every reference page is generated ahead of time and rebuilt daily, so a crawler and a reader get the same document and neither waits for JavaScript to find out what time it is. Only the ticking numerals and anything derived from your own time zone are computed in the browser. The Method page covers where the data comes from.

Funding

Display advertising, subject to consent, with no ads on the watch view, none above the fold on the planner and none inside the grid. The tool stays usable first. See Privacy.