Mondo Knows Facts

A day on Mars lasts 24 hours 40 minutes

Rover teams work on Mars time and shift their day slightly each day The Martian day is called a sol, and the difference from Earth's clock adds up to a 40 minute drift. Controllers on missions such as Curiosity have worn shifted watches to keep going. Mars also has a longer year, about 687 Earth days. It sits in Mondo's space collection, one of 200 facts that each trace back to the reference below.

Where this comes from

NASA Mars

Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.

Go further

More facts like this

Tags: mars, time, rovers

A day on Mars lasts 24 hours 40 minutes: the short answers

Where does this come from, and can I check it?
Rover teams work on Mars time and shift their day slightly each day. The figure is taken from NASA Mars, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a space fact?
Yes. It sits on the Space shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?
The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.