Hanoi, March 23 -- Vietnam saved 448,000 kWh of electricity, equivalent to approximately 942.2 million VND (36,800 USD), during Earth Hour 2025, which took place from 8:30 to 9:30 pm on March 22, according to the National Power System and Market Operation Company (NSMO).

Earth Hour is a global environmental initiative aimed at raising awareness about energy conservation and climate action. Launched in Sydney, Australia, in 2007 with over 2 million participants, the campaign has since expanded to nearly 200 countries and territories, engaging billions worldwide.

In Vietnam, Earth Hour is jointly organised by the World Wide Fund for Nature (WWF) Vietnam and the Ministry of Industry and Trade, attracting participation from all 63 provinces...