International Astronomy Group Joins Calls for Lunar Clock to Keep Time on Moon

WASHINGTON—Time moves a tad faster on the moon. Now an international group of astronomers has joined calls to give the moon its own clock so that future space missions can keep track of minutes on the celestial body. The International Astronomical Union voted Thursday encouraging space organizations across the globe to collaborate on a timekeeping standard for the moon, where one day lasts 29.5 Earth days. “That’s the crux of our resolution: to work together to establish this standard time,” U.S. Naval Observatory’s Susan Stewart said this week at the group’s conference in Cape Town, South Africa. Stewart helped propose the resolution....