Day Guide for Monday May 18th 2026

This is our day guide for Monday May 18th 2026 which shows you at a glance what's happening around the world on day 138 of 2026.

Holidays on May 18th 2026

Regional

Canada (regional): Victoria Day. Victoria Day celebrates the birthday of Queen Victoria. Following the death of Queen Victoria, May 24th was decreed as Empire Day across the British Empire

Regional

Canada (regional): National Patriots' Day. National Patriots' Day (Journée nationale des patriotes) is a commemoration of the Lower Canada Rebellion of 1837
Cayman Islands: Discovery Day. Commemorates the discovery of the Sister Islands of Cayman Brac and Little Cayman by Christopher Columbus in 1503
Colombia: Ascension Day Holiday (in lieu). Commemorates the ascension of Jesus into heaven forty two days after his crucifixion
Haiti: Flag and Universities' Day. Celebrates Haiti's educational system and commemorates the creation of the flag at the 1803 Arcahaye Conference.

Regional

Malaysia (regional): Birthday of the Raja of Perlis (in lieu). The Raja of Perlis , Tuanku Syed Sirajuddin was born in Arau, Perlis on May 17th 1943
Turkmenistan: Constitution and Flag Day. Marks Turkmenistan's declaration of independence from the Soviet Union in 1991

Public sector only

Uruguay: Battle of Las Piedras. The Battle of Las Piedras was fought on May 18th 1811 as part of the Uruguayan struggle for independence

May 17th 2026 | Go to Today | Holidays for 2026 are not available yet

Observances on May 18th 2026

  • International: International Day for Museums
  • USA: National Cheese Souffle Day
  • USA: National HIV Vaccine Awareness Day
  • USA: National No Dirty Dishes Day
  • USA: National Visit Your Relatives Day
  • United Kingdom: National Numeracy Day
  • International: World Therapeutic Horticulture Day

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