When do the seasons begin this year (2007) (just incase)?
This ought to be easy. It should be 21 March, June, September, December but it’s not. They can shift by a day depending on what year it is. The leap year recorrects it all but things get more upset over the 4 years between them but never more than a day out for each. To be honest, I understand how this works but I just use the 21 of Mar, Jun, Sept, Dec anyway. It makes little difference. Other dates are more sensetive. Easter depends on the moon. Vernal Equinix, Full moon, Sunday Vernal equinox is 21 march…first day of spring Full moon is the date of the first full moon after 21 March Easter is on the Sunday followijg that full moon. This can give a shift of over a month as to when Easter occurs.