It is about 243 of our days, as Venus rotates very slowly.
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the length of day on earth is 24 hours
Mars
Mars.
The length of the day in th US is the same as the length of the day anywhere else in the world, roughly 24 hours.
the length of the day is not a fixed unit of time
the length of a day on Jupiter is average, 9.9 hours
See answer given for length of Venus day in hours.
The length of a "day" on the moon is 29 Earth days.
Venus' atmosphere consists mostly of carbon dioxide, with clouds containing of sulfuric acid. There are also compounds of chlorine and fluoride.
29.5 earth days is one moon day wich is the length of the moons day
During the Autumn equinox the length of the day and night are nearly equal. The length of the day on the equinox is approximately twelve hours.