'Day's' in the Bible

Then the Lord said to Moses, “Behold, I will rain bread from heaven for you; and the people shall go out and gather a day’s portion every day, that I may test them, whether or not they will walk in My instruction.

‘These are the appointed times of the Lord which you shall proclaim as holy convocations, to present offerings by fire to the Lord—burnt offerings and grain offerings, sacrifices and drink offerings, each day’s matter on its own day—

Now there went forth a wind from the Lord and it brought quail from the sea, and let them fall beside the camp, about a day’s journey on this side and a day’s journey on the other side, all around the camp and about two cubits deep on the surface of the ground.

But he himself went a day’s journey into the wilderness, and came and sat down under a juniper tree; and he requested for himself that he might die, and said, “It is enough; now, O Lord, take my life, for I am not better than my fathers.”

So he left Asaph and his relatives there before the ark of the covenant of the Lord to minister before the ark continually, as every day’s work required;

Then Jonah began to go through the city one day’s walk; and he cried out and said, “Yet forty days and Nineveh will be overthrown.”

but supposed Him to be in the caravan, and went a day’s journey; and they began looking for Him among their relatives and acquaintances.

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