'Day's' in the Bible

A wind sent by the Lord came up and blew quail in from the sea; it dropped them at the camp all around, three feet off the ground, about a day’s journey in every direction.

That day’s victory was turned into mourning for all the troops because on that day the troops heard, “The king is grieving over his son.”

but he went on a day’s journey into the wilderness. He sat down under a broom tree and prayed that he might die. He said, “I have had enough! Lord, take my life, for I’m no better than my fathers.”

Assuming He was in the traveling party, they went a day’s journey. Then they began looking for Him among their relatives and friends.

Then they returned to Jerusalem from the mount called the Mount of Olives, which is near Jerusalem—a Sabbath day’s journey away.