time for Earth to make a complete rotation on its axis
"two days later they left"
"they put on two performances every day"
"there are 30,000 passengers per day"
one day of solar time, the time between successive noons; the time in which a planet such as Earth apparently rotates once around its axis, relative to the sun (on Earth about 24 hours as an average - the length of solar day is not constant throughout the year)