Tag Archives: serp-leap-year

  1. Why Do We Have Leap Year?

    Even though the standard calendar year is 365 days, Earth actually takes 365 days 5 hours 48 minutes and 46 seconds to go completely around the sun. (This is called a solar year.) In order to keep the calendar cycle synchronized with the seasons, one extra day is (usually) added every four years as February 29. What is the Julian calendar? The Julian calendar (established …