Chrome Extension · Web App
A beautiful, living world day & night clock. Open a tab and see exactly where it's day and where it's night, right now — a real-time sun terminator over a flat map or a spinnable 3D globe under a live night sky.
Private by default · no sign-in · no tracking — your pins & settings stay on your device.
No install needed: the web app runs the whole clock right in your browser. Its pins are saved on your device, separate from the extension's.
The exact solar terminator with soft twilight bands, the subsolar point, the dateline, and day-of-week tabs.
Drag to spin it like a real globe; it slows gently to a stop. Scroll to zoom, or leave it to auto-rotate.
Thousands of stars, the Milky Way, and the naked-eye planets in their real positions for today.
A configurable strip of 240+ cities, auto-sorted west → east, so you always know the time where your people are.
Drop a pin anywhere on the map or globe, name it, and get a live local clock for that exact spot.
Hover for the nearest city, local time, and sunrise/sunset. Drag to measure great-circle distance, bearing, and flight time.