Chrono Compass

A model of your body clock, used to find the fastest light plan for jet lag.

🔒 Every simulation runs in your browser. No network, nothing leaves this device.

Your trip

Direction
Time zones 8 h

Assumes you keep 23:00–07:00 sleep at the destination (local time). The plan is built around that.

About
days to adjust

Light plan (destination time)

Body-clock realignment

Hours from target — closer to 0 is aligned. Teal = with the plan, grey = do nothing.

Model, method & limits (open)