When the cloud moved from its place over the Holy Tent, the Israelites followed it. When the cloud stopped, that is the place where the Israelites camped.
The Israelites left the western Sinai desert. They traveled all together from place to place as the Lord commanded. They camped at Rephidim, but there was no water for the people to drink.
If the cloud stayed over the Holy Tent for two days, a month, or a year, the people stayed at that place. They did not leave until the cloud moved. When the cloud rose from its place and moved, they also moved.