February 29, 2016
By Kayleigh Lewis
...Here's why:
The Gregorian calendar, (click here) the most widely used across the globe, measures a year to be 365 days following the Earth's orbit around the Sun.
However, the Earth's orbit takes 365.24 days to complete its solar orbit and an extra day every four years is added to keep calendar seasons synchronised with solar seasons.
If we didn’t do this the seasons would shift around the calendar, and in 750 years’ time June would find itself in the middle of winter....
