International Open Data Day is celebrated on March 5, 2026.

International Natural Day is celebrated on February 13, 2027.

Mark your calendar: May 18, 2027 is International Museum Day.

May has a surprise: International Museum Day lands on May 18, 2026.

International Mobile Phone Recycling Day is January 24, 2027.

International Mobile Phone Recycling Day is January 24, 2026.

Mark your calendar: May 5, 2027 is International Midwives Day.

May 5, 2026 brings International Midwives Day — one of spring's more delightful excuses to celebrate.

It's International Martisor on March 1, 2027.