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International Day for the Preservation of the Ozone Layer

Next on Thursday, 16 September 2027

Celebrating the nation with pride!

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About International Day for the Preservation of the Ozone Layer

The International Day for the Preservation of the Ozone Layer commemorates the date in 1987 when the Montreal Protocol was signed to protect the earth's atmosphere. Observed globally, it highlights the importance of collective action in phasing out ozone-depleting substances to safeguard the planet for future generations. While not a public holiday involving time off work, it is widely recognized by environmental agencies and educational institutions in the United States.

A picture of the earth as seen from space
Photo by Steve A Johnson on UnsplashUpdated 9 Sep 2026

How it's celebrated

  • Flag hoisting ceremonies
  • Parades and cultural programs
  • Fireworks

When is International Day for the Preservation of the Ozone Layer in USA?

International Day for the Preservation of the Ozone Layer dates from 2023 to 2031

  • 2023Saturday, 16 SeptemberPast
  • 2024Monday, 16 SeptemberPast
  • 2025Tuesday, 16 SeptemberPast
  • 2026Wednesday, 16 SeptemberPast
  • 2027Thursday, 16 September in 312 days
  • 2028Saturday, 16 Septemberin 678 days
  • 2029Sunday, 16 Septemberin 1043 days
  • 2030Monday, 16 Septemberin 1408 days
  • 2031Tuesday, 16 Septemberin 1773 days

September 2027

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Add a International Day for the Preservation of the Ozone Layer countdown to your website

Free widget that counts down to the next International Day for the Preservation of the Ozone Layer and moves to the following date every year.

<iframe src="https://11holidays.com/embed/countdown?holiday=us%2Finternational-ozone-layer-preservation-day&theme=festive" width="100%" height="230" style="border:0;border-radius:12px;max-width:100%" loading="lazy" title="Countdown"></iframe>

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