Estonian National Spring Holidays Sanna Kartau, Mari-Ann Lumeste, 2011 What holidays do we have in Spring? March · 8th - Women's Day (Naistepäev) · 12th - St Gregorius's Day (Korjusepäev) · 14th - Estonia's Mother Tongue Day · 17th - St Gertrude's Day (Käädripäev) · 25th - St Mary's Day (Ussimaarjapäev) April 1st - April Fools Day 1st - Karjalaskepäev (the day cattle was first sent to the pastures after winter) 14th - Plowing Day (Künnipäev) 23rd - St George's Day (Jüripäev)