Clavis: Planetary Clock

Planetary hours & moon phase

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Know which classical planetary hour rules right now — computed from the true sunrise and sunset at your exact location. Planetary Clock is a precise, beautifully simple planetary-hours clock. Since antiquity, each day and night has been divided into twelve unequal hours, each governed by one of the seven classical planets in the Chaldean order. Planetary Clock computes these hours with astronomical accuracy from the true sunrise and sunset at your exact location. • Current planetary hour — see which planet rules right now, with a live countdown to the next hour. • Ruler of the day — the classical planet that governs today. • Upcoming hours — a clear timeline of the planetary hours ahead, from sunrise to sunset and through the night. • Moon phase — the current phase and illumination of the Moon. • Monthly calendar — lunar phases and planetary hours at a glance, computed on your device. Planetary Clock is free, with no ads, no accounts, and no sign-in. Open the app and read the sky. Location is used only on your device to calculate sunrise, sunset, and the planetary hours — it is never transmitted.

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The developer, Pedro Henrique Oliveira Sousa, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Pedro Henrique Oliveira Sousa
Size
  • 34.9 MB
Category
  • Utilities
Compatibility
Requires iOS 16.0 or later.
  • iPhone
    Requires iOS 16.0 or later.
  • Mac
    Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English and 4 more
  • English, French, Hebrew, Portuguese, Spanish
Age Rating
4+
Copyright
  • © 2026 Mana Clavis
  • Developer Website
  • Privacy Policy