Why Mumbai refuses the grid
India runs a single +5:30 line for a country three time zones wide. Our rail keeps the half-hour cities on the same ruler as everyone else, which is why two faces in the row will never agree on where the minute hand sits.
City rail and day/night terminator
Scroll the rail sideways — the sky band beneath each face is that city's real sky right now.
The Overlap Ledger
24 hours, read left to right in UTC
| Desk |
|---|
Prime contact 10:00–16:00 local Office hours Awake Asleep
Field Notes from the Watchkeepers
Issue no. 221 · Filed midweek
Reading the sky band
The strip under each face is not decoration. Its colour is interpolated from that city's local hour through a seven-stop sky ramp, so a glance down the row shows you dawn chasing dusk around the planet.
The amber badge
Offsets marked in amber are currently shifted for summer time. They will snap back without warning, and every scheduling error the bureau has ever made traces to one of those badges.
Name the zone, not the city
Write "14:00 Europe/Paris", never "2pm your time". The bureau style sheet has held that line since our first issue, and it has saved more meetings than any calendar tool.
A weekly reading of the world's clocks.
Every Thursday at 09:00 UTC we send one page: which zones changed, which overlaps opened, and one small essay on how people keep time. Free, and easy to leave.
- Zone changes logged this year07
- Cities on the standing rail14
- Widest usable overlap window3h 15m
- Half-hour and quarter-hour zones04