MarsClock

1.32

Scott Maxwell

4.63

69 reviews

5,000+
Downloads

Free

A Mars-time alarm clock, with times for MER, Curiosity, and Perseverance rovers.

Download from Google Play

About MarsClock

MarsClock is a tools app developed by Scott Maxwell.

Download Statistics

MarsClock has been downloaded 9.2 thousand times. In the last 30 days, the app was downloaded 7 times.

User Ratings

MarsClock is rated 4.63 out of 5 stars. The rating is based on 69 ratings.

App Information

MarsClock is FREE to download. The APK download size is 5.24 MB. The latest version available is 1.32. The last update was on August 11, 2026.

Technical Requirements

MarsClock requires Android 4.4+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since July 2012.

Description

MarsClock is an alarm clock that lets you see times for all three of NASA's Mars rovers -- Spirit, Opportunity, and Curiosity -- as well as the InSight lander and the new Perseverance rover. You can also set alarms in Mars time, either as one-shot alarms or as alarms that will repeat every sol (that is, every Martian day).

This app is released for free by a (former) rover driver on NASA's Mars missions. Enjoy it!

Recent changes:
Updating for API level 36 per Google Play Store policies. Also, layout now avoids the notification bar, making it easier to press the overflow menu and to read the title bar.

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More data about MarsClock

Price	Free to download
Total downloads	9.2 thousand
Recent downloads	7
Rating	4.63 based on 69 ratings
Ranking	Not ranked
Version	1.32
APK size	5.24 MB
Number of libraries	14
Designed for Android	4.4+
Suitable for	Everyone
Ads	NO ads

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Alternative downloads for the MarsClock app

Google Play Rating history and histogram

Rating history

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Downloads over time

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MarsClock has been downloaded 9.2 thousand times. Over the past 30 days, it has been downloaded 7 times.

Changelog of MarsClock

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Developer information for Scott Maxwell

Scott Maxwell

marsclock@scottmaxwell.org

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Comments on MarsClock for Android

★★★★★ A Google user · Jul 25, 2014

Mars is a world of wonders Great app. If only the time zone on my phone would one day be the same as Spirit or Oppy.

★★★★★ A. Karley · Jan 8, 2022

Fun but fundamentally completely useless. Which is fine, me not being a Mars rover driver. No adverts. I need to sample some Jeff Wayne/ War of the Worlds for alarm tones.

★★★★★ A Google User · Apr 6, 2014

MARS CLOCK NASA@VISWA MITHRA Excellent widget clock app

★★★★★ A Google User · Aug 8, 2012

Mars clock This is a cool little app! No problems on my Samsung Galaxy - old version. Thanks, Scott.

★★★★★ Kevin · Aug 17, 2012

Remove menu button We don't need menu buttons anymore, put the menu button in top right corner

★☆☆☆☆ Kimberly · Aug 6, 2012

Ummmm... If I am looking at this correctly the times are how long each has been on Mars. At this time curiosity had been on Mars for just over an hour but app shows 19+ hours... Disappointed.

Google Play Rankings for MarsClock

This app is not ranked

Technologies used by MarsClock

9 permissions · 14 libraries

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Frequently asked questions about MarsClock

Is MarsClock free?

Yes. MarsClock is free to download from Google Play.

Is MarsClock still available?

Yes. MarsClock is on Google Play, and the last update we saw was on August 11, 2026.

Does MarsClock contain ads?

No. Google Play does not list MarsClock as containing ads.

What Android version does MarsClock require?

MarsClock runs on Android 4.4 and higher.

How large is the MarsClock APK?

The MarsClock APK is 5.24 MB.

Is MarsClock suitable for children?

Google Play rates the content of MarsClock as suitable for everyone.

How many times has MarsClock been downloaded?

Google Play lists 5,000+ downloads for MarsClock.

How do people rate MarsClock?

MarsClock scores 4.63 out of 5 stars, from 69 ratings on Google Play.

Who made MarsClock?

MarsClock was developed by Scott Maxwell. It is listed in the tools category on Google Play.

What are the best alternatives to MarsClock?

People looking at MarsClock also look at these tools apps: Alarm Clock : Timer & Reminder, Alarm Clock Free, Clock, Alarm Clock: Alarm App & Sleep, Alarm Clock.

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