The third month of the Gregorian calendar is March and is named after the Roman god of war, Mars. Holidays in March are: St. Patrick's Day, First Day of Spring (Vernal Equinox), Girl Scout Day. Daylight savings times also begins in March. Retailers will have sales and offers for St. Patrick's Day. Stores that carry clothing, shoes and accessories also have sales and special offers since many people prepare for spring and summer with new clothes. The birthstone for March is aquamarine and the birth flower is the daffodil.