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.
• Romanian troops occupied Chernivtsi (1918).
• A Soviet division and Nestor Makhno's cavalry broke through the fortifications on Perekop and forced Sivash (1920).