Monday was okok Day 🎉

What else 21 September is

Observances that land on 21 September, from public calendars:

• Earth, Wind and Fire Day (United States; unofficial, no recorded founder; listed by Checkiday, not on Wikipedia; note: Maurice White said he picked the 21st for how it sang || His wife told the Wall Street Journal in 2019 it was their son's due date)
• Arbor Day (Brazil)
• Customs Service Day (Poland)
• Founder's Day and National Volunteer Day (Ghana)
• International Day of Peace (International)
• Student's Day (Bolivia)

None of these is official in the way people assume. A brand, a trade body, a government or one person with a website declared each of them. On this site okok named 21 September 2026, and it is sealed. Every 21 September →