# Solar System Clock — Know the time on every planet

> Displays accurate time and positions for solar system objects. (iPhone/iPad app by Sunita George.)

- Source: https://appshunter.io/ios/app/solar-system-clock/id6737652569 (this page in markdown: same URL + `.md`)
- Developer: [Sunita George](https://appshunter.io/developer/1777332550)
- Category: Utilities, Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 17 MB
- Languages: American English
- Released: 2025-02-19
- Data updated: 2026-06-01
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/solar-system-clock/id6737652569/reviews.md

## What is Solar System Clock?

The app comes with the Earth and Mars clocks free of charge (including associated moons), and additional planet clocks can be purchased through the app or the App Store. The purchase also includes the new customisable widgets and the current and past positions of supported objects.

Did you ever want to know the time on Saturn?
The simple Solar System Clock can tell the time on any planet or dwarf planet, and the Sun in relation to Earth time. Calculated from the starting date of the Gregorian calendar, the app displays seconds, minutes, hours, days and years for each object based on orbit and rotation data. The time is given in both analog and digital formats and can be stopped and restarted for easy viewing, while keeping to the accurate localised time. A single analog clock face for all planets and dwarf planets is also included, and can be split into two clocks for main planets and dwarf planets. Times can be freely translated between planets, the Sun and moons.

The app also provides the current and past positions of the planets, moons and dwarf planets to scale in the form of an interactive map, and the seasons on every planet and dwarf planet.

A widget form of the Earth and Mars clocks is provided for circular widget slots on Apple Watch, and widgets on other supported devices can be customised within the app. An iMessage extension is also included to enable easy communication using the time systems. The main clock can also be projected as functional wall art.

## Key features

- Planet and moon time displays
- Analog and digital clock formats
- Interactive solar system map
- Customizable widgets
- Planetary season information
- Time translation between celestial bodies

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| All Planets and Dwarf Planets | $2.99 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/solar-system-clock/id6737652569/reviews.md

### 5/5 — The Ultimate Planetary Timekeeper!

*2025-02-25, version 1.0*

This ingenious App has completely transformed how I think about time across our solar system. It displays the current time not just on Earth, but on every planet and dwarf planet.  The interface is clean and intuitive, with a clear representation of each celestial body. 
Highly recommend you download all of the planets.

### 5/5 — Time travel is possible

*2025-02-19, version 1.0*

This is art & science in one. Beautiful colours & mind expanding concepts. A must have!

## Frequently asked questions about Solar System Clock

### What planets can I see the time for on Solar System Clock?

Solar System Clock allows you to see the time for any planet or dwarf planet, as well as the Sun, in relation to Earth time. It also includes associated moons for Earth and Mars.

### How accurate is the time displayed by Solar System Clock?

The time is calculated based on orbital and rotation data, starting from the Gregorian calendar. It displays seconds, minutes, hours, days, and years for each object with accurate localized time.

### Can I customize Solar System Clock widgets?

Yes, the app includes customizable widgets for supported devices. You can also use widgets for Earth and Mars clocks on Apple Watch.

### Does Solar System Clock offer any interactive maps?

Yes, the app provides an interactive map showing the current and past positions of planets, moons, and dwarf planets to scale.

### What is the age rating for Solar System Clock?

Solar System Clock has an age rating of 4+, making it suitable for a wide range of users.

### How often is Solar System Clock updated?

The latest version is 1.7, and the app was last updated on February 17, 2026. Updates typically occur to improve features and accuracy.

### Is Solar System Clock available on all devices?

Solar System Clock is supported on Apple Watch, iPhone, and iPad, offering a versatile experience across different Apple devices.

### Can I purchase additional planet clocks on Solar System Clock?

Yes, while Earth and Mars clocks are free, additional planet clocks can be purchased through the app or the App Store. These purchases also unlock customizable widgets and object positions.

## Version history (last 5 releases)

### 1.7 — 2026-02-17

New in Version 1.7:
 - Added calendars to most planets, all dwarf planets and Nereid (moon of Neptune).
 - The app now provides the current date on the planet, accounting for leap years.
Fixes in Version 1.7:
 - Fixed calculation issues for some dwarf planets.

### 1.6 — 2026-02-15

New in Version 1.6:
 - Added seasons for the Sun, based on the 11 year solar spot cycle. These seasons are viewable in the detail view ("More Info") for the Sun.

### 1.5 — 2025-09-15

New in Version 1.5:
 - Seasons for every planet and dwarf planet have been added.
Fixes in Version 1.5:
 - The app now works for the latest operating system versions.
 - Liquid Glass has been incorporated into the app's design.

### 1.4 — 2025-08-14

New in Version 1.4:
 - Added a series of interactive maps for the supported objects, with a key and scale.
Changes in Version 1.4:
 - Expanded the information section to include a tutorial for the interactive map.

### 1.3.1 — 2025-06-19

This version fixes a bug with the custom widgets that prevented them from displaying properly.

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## Related topics

[solar system clock](https://appshunter.io/ios/topics/solar-system-clock)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*