the length of day on earth is 24 hours
Mars
The earth day is Approximately 24 hours in Length.
The length of a "day" on the moon is 29 Earth days.
If you mean the length of the day, yes - that is the same around the Earth. The Earth rotates as a rigid body. If by day length you mean hours of sunlight. On the same lines of latitude day length will be the same, but due to the wobble in the rotation of the earth, day length is different along lines of longitude.
243 Earth days
29.5 earth days is one moon day wich is the length of the moons day
24 Hours.
shorter
a complete rotation of earth on its axis takes about 24 hours, this is the length of a day.
The actual length of a day is 23 hours, 56 minutes and 4.09 seconds
243 days on earth
The length of the day and the length of the seasons