How long is a day on the Moon?
About 29½ Earth days from one sunrise to the next: two weeks of sunlight, then two weeks of night.
Because the Moon turns so slowly, the Sun takes about a week to climb from the horizon to its highest point. The ground heats to over 100 °C by day and falls below −170 °C at night.
There is no twilight: without air, night begins the moment the Sun's disc slips below the horizon.