Time display for nerds: Unix, sidereal, binary clocks & more.
Epoch shows the current moment across a wide range of time systems —
updating every second, all in one place.
What Epoch gives you
- Civil: date, time, day second, day percent, seven-segment clock — for any timezone
- Technical: Unix time, International Atomic Time (TAI), GPS time
- Astronomical: Greenwich and Local Mean Sidereal Time (GMST, LMST), Julian Date variants
- Curiosities: decimal time, Swatch Internet Time, New Earth Time, Doomsday Clock, 3 binary clocks, octal time and hexadecimal time
Copy any value to clipboard with one tap or long press.
Configurable
- Build your own Watchlist tabs — combine any value from any category, in any order.
- All built-in tabs (Civil, Technical, Astronomical, Curiosities) are fully customizable too, and can be hidden and restored anytime.
- Set custom labels, section headers, and dividers.
- Reorder by drag-and-drop, swipe to remove.
- Customize date and time formats, configure timezone information.
- Optionally pin timezones to always show standard or summer time.
- 7-day advance notice of clock changes, with upcoming transitions shown in the value's info dialog.
- Export, import, and reset all preferences.
Focus mode
- Double-tap any value for a full-screen, always-on display — ideal as a bedside clock.
- Adjustable brightness (Android) and text color.
- Toggle details with a long press.
- Burn-in protection through gentle, periodic pixel shifting (especially useful on OLED screens).
- Optionally start the app directly in Focus mode.
Designed for night use
Night mode displays red text on black — preserving your eyes' dark adaptation for stargazing.
Example configurations
Ready-to-import example configurations are available on GitHub,
including spaceflight tab, world timezone explorer, and config manual.
Privacy first
No ads, notifications, tracking, analytics, or network requests.
All settings stored locally on your device.
No permissions required.
For Local Mean Sidereal Time: optionally grant location access once (coarse, no GPS) or enter longitude manually.
Available in English and German.
