International Dark Sky Week is a global celebration of the night.





From the darkness needed for a restful night’s sleep to the activities we enjoy beneath the stars, the night plays a crucial role in protecting healthy wildlife ecosystems, advancing science and exploration, preserving cultural knowledge, and much more. Yet, with the rapid rise of light pollution, we risk losing the natural night we rely on alongside our view of the stars.

This International Dark Sky Week 2025, we invite you to join in the fun by taking meaningful actions to protect the night. Whether you're taking our home lighting assessment, signing the DarkSky pledge, or submitting a proclamation in your community, we are here to support and guide you! 

Check our suggested actions below.

Want to learn more about the growing global movement to protect the night? 
Countdown to Dark Sky Week | April 21 - 28, 2025.
DOWNLOAD THE 2025 IDSW OUTREACH AND MEDIA KIT
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