Anonymous Caller Midnight What time is it on the moon? Takuma Zenshuin 17:43:02. [pause] No... 17:43:06. [pause] No... 17:43:11. [pause] No, wait... 17:43:... ugh... Takuma Zenshuin Ym emit si gniunnur tuo! Akagi Ritsuko To be honest, Annonymous, you question is about as easy to answer as: "What time is it on the Earth?" It really depends on who you ask. When the Apollo mission landed on the Moon, the astronauts brought their own clocks. I am not sure, but, likely, they were sychronized to Johnson Space Center in Houston, Texas (US Central time zone). The International Space Station, for a different example, is an effort of many nations, particularly the United States and Russia, who each have their own "mission control" for the station. In order to be fair, they picked the most universal time, namely Greenwich Mean Time (GMT). When the Chinese land on the Moon, as they plan to do by the end of this decade, they will likely use Beijing time. An easier question to answer is what time of day is it on the moon, if you pick a particular point on the Moon, but the numbers are going to be rather odd. This is because the moon has a day nearly 656 hours long. It happens to be synchronized with the Moon's rotation around the Earth, which is why you always see the same features every time you look at it. The "dark side of the moon" Pink Floyd is so fond of singing about really isn't but it is the side that the Earth does not see. (Well, it is dark during a "full moon," but it is fully bright during a "new moon.") Obviously, no human is going to want to live by a 656-hour day. Until there are permanent residents living on the moon who can determine this for themselves (knock on regolith), the simple answer to your question is: The time on the moon is whatever the astronaut says it is.