Day periods on planets are defined as the time required for one full rotation in relation to the "fixed" star they are orbiting. Since the sun is a star itself, it doesn't have a day. But I guess since it would always be sunny, you may be able to say that it's day lasts as long as the sun is still shining.
30 days
Mercury's orbit of the sun takes 87.969 days.
88 days.
365.25 days
365 days
365 days
365.24 days is roughly how long it takes the Earth to revolve around the Sun. For convenience we use a "year" of 365 days with" leap years" of 366 days.
Saturn takes 29 years and 168 days to orbit the sun.
How long does it take for Earth to orbit the Sun? One year, or 365.25636042 days.
88 days
365.25 days
2-8 days