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Epoch

Time display for nerds: Unix, sidereal, binary clocks & more.
New in version 1.1.1
- 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- crashes for outdated timezone names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
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.
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Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 1.1.1 (33) suggested Added on Jun 14, 2026

    x86_64

    This version requires Android 7.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • io.github.RealEarthling.epoch.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 19 MiB PGP Signature | Build Log

  • Version 1.1.1 (32) - Added on Jun 14, 2026

    arm64-v8a

    This version requires Android 7.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • io.github.RealEarthling.epoch.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 18 MiB PGP Signature | Build Log

  • Version 1.1.1 (31) - Added on Jun 14, 2026

    armeabi-v7a

    This version requires Android 7.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • io.github.RealEarthling.epoch.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 16 MiB PGP Signature | Build Log

  • Version 1.0.0 (13) - Added on Jun 09, 2026

    x86_64

    This version requires Android 7.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • io.github.RealEarthling.epoch.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 19 MiB PGP Signature | Build Log

  • Version 1.0.0 (12) - Added on Jun 09, 2026

    arm64-v8a

    This version requires Android 7.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • io.github.RealEarthling.epoch.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 18 MiB PGP Signature | Build Log

  • Version 1.0.0 (11) - Added on Jun 09, 2026

    armeabi-v7a

    This version requires Android 7.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • io.github.RealEarthling.epoch.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 15 MiB PGP Signature | Build Log

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