Why? its a leap year
The equinox occurs at exactly 4:30 UTC on March 20 for the entire planet, however, due to the way we track time, Canadians will be split on when the first day of spring actually occurs. Roughly half the country gets to leave winter behind on March 19, since 4:30 UTC is before midnight for the Central, Mountain and Pacific time zones. Meanwhile, the rest of the country - those in the Newfoundland, Atlantic and Eastern time zones - will see spring start in the early morning hours of March 20, as the Sun crosses the equator after midnight for those regions.
Merry equinox one and all!
http://www.theweathernetwork.com/new...res-why/65148/