End daylight saving time and clock changes – Health, Consumption, Climate | ACHEDFR

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Citizen Association for Equitable and Sustainable Time (ACHED / ACHEDFR)

Formerly: “Association against double summer time (DST) and for reducing the advances of legal time”

Public information website heure-ete.net, updated since 2004.

In 2026, ACHED renews its call to end “double summer time” by returning to a more natural time zone alignment: Back to the Time Zone (UTC+1 or UTC+0). Infographics, figures (billions of euros, millions of tonnes of CO₂), analyses, letters and petitions support this call. Thank you for reading, understanding, and joining urgently.

Last update : 01/07/2026

Website under renovation. Icons 🕒: temporary 🆕: new 🏛️: vintage . Thank you for your understanding.

The organisation ACHED ACHED since 1983 and still active in 2026. Contacts, tributes. Last update : 01/04/2026 🕒🏛️ The Legal Time File Understand the issue and its stakes. Think climate. Protect health. Position Europe. Last update : 12/26/2025 🕒 Terms and Methods Glossary — a guide to stay clear and objective, without oversimplifying. Last update : 12/26/2026 🕒 Analysis Clock Advance Effect vs. Clock Change Effect. Last update : 12/26/2026 🕒

Visualisations, figures Infographics on the legal time issue. Last update : 12/26/2026 🆕🕒 References / Letters Access our library, connect letters and petitions with their references. Last update : 01/07/2026 🆕🕒 Perspectives Perspectives, latest news, calls to action. Last update : 12/26/2026 🕒 Press releases Our press releases—recent items as well as archives back to 2004—with quick access via filters. Last update : 11/11/2025 🕒🏛️