Time display for nerds: Unix, sidereal, binary clocks & more.

Epoch displays the current moment across a wide range of time
systems — updating every second, all in one place.
WHAT EPOCH SHOWS YOU
- Civil: date, time, day second, day percent — for any timezone worldwide
- Technical: Unix time, International Atomic Time (TAI), GPS time
- Astronomical: Greenwich Mean Sidereal Time, Julian Date, Modified Julian Date
- Curiosities: Swatch Internet Time, three binary clock variants, Doomsday Clock
CONFIGURABLE
Build your own display with the Watchlist tab — combine any values
from any category, in any order. Set custom labels, reorder by
drag-and-drop, swipe to remove.
DESIGNED FOR NIGHT USE
Night mode displays red text on black — preserving your eyes'
dark adaptation for stargazing.
PRIVACY FIRST
No ads. No notifications. No tracking. No analytics.
No network requests. All settings stored locally on your device.
No permissions required.
Available in English and German.
WhatsNew:
- Value count per tab
- timezone indicator on values
- expanded date with ISO week and day of year
- MJD2000
- Local Mean Sidereal Time (LMST)
- "What's New" in Settings
Fixed:
- Julian Date offset
- tile reordering
- crashes for outdated timezone names
Changed:
- longitude config for LMST only manual for now