According to the Law of Ukraine, in cases where a public holiday falls on the weekend (Saturday or Sunday), the weekend is extended by one day.
Red marks the official holidays wich are days off.
Brown marks the official holidays which are working days.
Green marks the celebrations, which change date.
• International Labor Day (1890). The first day. For the first time, the day was marked freely in Ukraine in 1917.
• In Kharkiv, the first belt tractor «Kommunar» drove from the factory (1924).
• The Ukrainian composer Leo Kolodub was born (1930/05/01).