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Screenshots

  • Clavis: Planetary Clock screenshot 1
  • Clavis: Planetary Clock screenshot 2
  • Clavis: Planetary Clock screenshot 3
  • Clavis: Planetary Clock screenshot 4

About Clavis: Planetary Clock

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 in the city you choose. • Current planetary hour — see which planet rules right now, with a live countdown to the next hour. • Apple Watch — the ruling planet and the minutes left in this hour, right on your watch face and in the Smart Stack. Hours are computed on the watch, so it works even when your iPhone is out of reach. • Widgets — the ruling planet and the minutes left in this hour on your Home Screen and Lock Screen, with the hours ahead and the whole day in the larger sizes. • 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. • 3D chart — your birth chart rendered in three dimensions, with transits and aspects. • Sync across devices — sign in and your calendar and chart settings follow you. Planetary Clock is a subscription app. A monthly or annual plan unlocks everything, with a free trial when your Apple Account is eligible. No ads, and no tracking. Signing in with Apple or Google keeps your data in step across your devices. You pick your city by searching for it — the app does not use GPS — and every planetary hour is computed from that city's coordinates and time zone, so the same place is used on every device. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

What’s new

Version 1.11.0 · Updated October 19, 2026

New: Ask the clock. Subscribers get an assistant that shows the day with its planetary hours and your events, and answers questions about the app and the history of the planetary hours. Before anything is sent, the app asks your permission and names who receives the data. The conversation stays only on your device.

App privacy

The developer, Pedro Henrique Oliveira Sousa, reported these privacy practices to Apple.

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

  • Identifiers: Device ID, User ID
  • Purchases: Purchase History
  • Location: Coarse Location
  • Contact Info: Email Address, Name
  • User Content: Photos or Videos, Customer Support, Other User Content
  • Other Data: Other Data Types

Used for: Analytics, App Functionality

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

  • Usage Data: Product Interaction
  • Diagnostics: Crash Data, Other Diagnostic Data

Used for: Analytics, App Functionality

Alternatives to Clavis: Planetary Clock

Looking for apps like Clavis: Planetary Clock? Here are 6 similar apps on the App Store. The highest rated is Delety: Photo & Video Cleaner (5.0/5), and 5 of the 6 are free to download.

Clavis: Planetary Clock vs. alternatives
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Planetary Hours - Astro Clock 4.0 / 5 (1) 4.99 USD Mar 26, 2026 Compare
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