Local Noon-Based Time
Your city. Its solar noon. One shared clock.
LNBT sets 12:00 to true solar noon at the largest population center near you. Once set, the clock runs in your browser from that locality — a shared sun day for people under the same sky. Far-apart meetings still use UTC (or a calendar invite) as the shared instant.
Find your clock
Pick a city (A–Z) or use location. Location picks the largest catalog city near your fix — not your exact pin. After that the clocks run on-device until you change city. iPhone: use https://lnbt.org; clear Safari site data if an old tab hangs.
Set clock from coordinates or map link
Paste decimal, DMS (deg:min:sec), or a Google Maps share link — full place URLs or short
maps.app.goo.gl links. Useful for testing the clock as if you were somewhere else.
Examples: 43.85, -88.46 · 43:50:54N 88:27:57W · Google Maps Share link.
Site share: ?city=Chicago|IL|USA or ?lat=…&lon=…
How time works here
- LNBT — local sun at a shared reference city (metro day).
- Civil — legal wall time on your phone and in laws (DST when observed).
- UTC — one planet-wide instant for coordinating across cities and oceans.
Same sky → LNBT. Far apart → UTC / calendars. More detail on the About page. See how metros paint the lower 48: Show the map.