Count Every Kilowatt Day in Canada
Count Every Kilowatt Day in Canada is held on May 29. This event in the third decade of the month may is annual.
Day of the seal in Russia on May 25 (Irkutsk region);
Venezuela Arbor Day on May 30 (celebrated on the last Sunday in May);
Steppe Day in Ukraine on May 30 (2017);
National Tree Day in Benin on June 1 (or Festival of Trees);