Earth Hour is a worldwide event to continue the conversation about how limiting our energy use can reduce our impact on the environment.

Earth Hour is a global movement that uses one symbolic hour to spark everyday climate action. Join The City of Calgary and community partners at Central Library for a free family event that brings together music, performances, hands-on activities and practical tips for reducing energy use.

Earth Hour Calgary — Central Library
Date: Saturday, March 28, 2026
Time: 6–9:30 p.m. (lights off 8:30–9:30 p.m.)
Location: Central Library, 800 3 St SE

What’s on:

• Live music and Indigenous performances
• Repair Exchange (bring small items to fix)
• Youth activities and interactive exhibits (pedal-power demos, energy games)
• Climate action resources and community partner booths

To mark Earth Hour, The City will turn off non-essential and decorative lighting at participating municipal facilities from 8:30–9:30 p.m. Locations include: Ad Valorem Place; all fire stations; Calgary Public Building; Dartmouth Place; Inglewood Bird Sanctuary Nature Centre; Manchester Centre Building E; Ralph Klein Park Environmental Education Centre; Calgary Municipal Building (Historic City Hall, Administration Building, Municipal Building); and the Water Centre.

Earth Hour is a starting point. Learn everyday actions you can take to reduce energy use and lower emissions at home and work. Visit calgary.ca/climateaction for tips and resources. Share your Earth Hour actions on social media with #EarthHourYYC.

Arusha Climate has prepared a Community Association Climate Action Toolkit to help groups continue the momentum after Earth Hour. Use it to plan local activities and keep neighbours engaged.

The event is family-friendly and accessible. If you require specific accommodations, please contact the event organizer at events@arusha.org.

Hosted by The Arusha Centre with support from The City of Calgary and community partners. For event questions contact: events@arusha.org.