Bangkok joins Earth Hour 2025 – landmarks turn off for the climate

On March 22, 2025, Bangkok will participate in Earth Hour , the global initiative in which cities around the world turn off their iconic buildings and lights for one hour to raise awareness of climate change. Among the Thai landmarks that will be dimmed are the Grand Palace, Wat Arun, Rama VIII Bridge and King Power Mahanakhon . The initiative aims to inspire both individuals and businesses to reduce their energy consumption and reflect on their environmental impact.

What is Earth Hour?

Earth Hour was started by the World Wide Fund for Nature (WWF) in Sydney, Australia, in 2007. The idea was simple: to turn off lights and unnecessary electricity consumption for one hour to draw attention to the need for sustainable energy use. Since then, Earth Hour has grown into a global event with over 190 countries and thousands of cities participating every year.

How does Thailand participate in Earth Hour?

Thailand’s commitment to Earth Hour has grown in recent years, with 2025 expected to be one of the largest participation years yet. The Bangkok Metropolitan Administration (BMA) has confirmed that large parts of the city will participate by turning off their lights between 20:30 p.m. and 21:30 p.m. In addition to iconic buildings, shopping malls, hotels and government buildings will also be invited to participate.

Why is this important?

Earth Hour is more than just a symbolic gesture. It is a reminder that small changes can have a big impact on the environment . By reducing energy use, even for just one hour, you can save electricity and send a strong signal about the need for climate action.

Some of the biggest environmental challenges in Thailand include:

• High levels of air pollution, especially in northern Thailand.
• Increasing energy consumption in big cities like Bangkok.
• The impact of climate change on tourism and agriculture.

How can you participate?

• Turn off all unnecessary lights and electronic devices between 20:30 and 21:30.
• Share the message of Earth Hour on social media with #EarthHourThailand.
• Participate in local events and seminars on sustainability.

Text: Editorial team

Image license: WWF - Earth Hour 2025