Hora Solis
Tools
Rediscover the Sun's rhythm with high-precision astronomical solar time.
- Downloads
- 41+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Oct 27
- 2026 · v2.1
Screenshots
About Hora Solis
Hora Solis is not just a clock. It is a precision astronomical tool that transforms your device into a modern digital sundial. While our civil clocks follow a conventional average, the Sun has its own unique pace: True Solar Time.
Key Features:
- Astronomical Precision: Powered by the VSOP87 algorithm, the app calculates the sun's position and the equation of time with extreme accuracy.
- True Solar Time: View the exact time based on the Sun's actual meridian transit at your specific location.
- Solar Events: a detailed and immediate overview providing Local Time (LT) and True Solar Time (TST) for sunrise, solar noon, and sunset, along with precise calculations for the length of day and night.
- Instant Setup: At launch, if GPS signal is unavailable, the app displays the True Solar Time for a default location. By default, this is St. Peter's Square in Rome, but you can customise it at any time to get True Solar Time wherever you are.
- Clean Interface: An essential design focused on putting nature's own time front and centre.
Why use Hora Solis?
Whether you are an astronomy enthusiast, a photographer chasing the perfect light, or simply curious about how much your clock deviates from solar reality, Hora Solis provides the data you need with maximum reliability.
Note: The app requires GPS location access to calculate local astronomical data. No data is collected or shared.
What’s new
Version 2.1 · Updated October 27, 2026
What's new in version 2.1: • New "Solar Events" Page: a dedicated section providing a clear, detailed breakdown of Local Time (LT) and True Solar Time (TST) for sunrise, solar noon, and sunset, along with precise calculations for day and night lengths. • UI & Text Responsiveness: fixed text overflow issues to ensure flawless readability on compact screen smartphones.
Alternatives to Hora Solis
Looking for apps like Hora Solis? Here are 3 similar Android apps on Google Play. The highest rated is YourCoach - Health Coaches (4.5/5), and 2 of the 3 are free to download.
| App | Rating | Price | Installs | Last updated | Compare |
|---|---|---|---|---|---|
| Hora Solis | – | Free | 10+ | Oct 27, 2026 | |
| YourCoach - Health Coaches | 4.5 / 5 | Free | 1,000+ | Sep 23, 2026 | Compare |
| Solar Mobile | 4.0 / 5 | Free | 50,000+ | Aug 13, 2026 | Compare |
| SkySafari Astronomy | 4.3 / 5 | 4.99 USD | 10,000+ | Oct 26, 2026 | Compare |
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