Q:
What Is Each 24-Hour Cycle of Day and Night Called?
A:
Quick Answer
Each 24-hour cycle of day and night on Earth is known as a day. A day is the period of time it takes for the Earth to complete one full rotation about its axis.
Continue ReadingFull Answer
There are 365.25 days in one year. The extra quarter of a day collects every four years to produce a leap year, which has 366 days. February is always the month that collects this extra day, meaning there are 29 days in February during a leap year. The leap day has been used far back as 46 B.C., when it was first added to the Julian calendar.
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