First day of Spring

Google have special logo on their google website for first day of spring .

First Day of Spring
Spring Equinox
March (3/20/06, 3/21/07, 3/20/08, 3/20/09, 3/20/10, 3/20/11, 3/20/12, 3/20/13, 3/20/14, 3/20/15, 3/20/16, 3/20/17, 3/20/18, 3/20/19, 3/20/20)

Here are Google logo



Google Japan New Design


Google China


Google Korea