Earth Hour in United States - 2025
29 Mar 2025, Saturday
Earth Hour is an annual event in which many people worldwide turn their lights off on the last Saturday in March.
How many days until Earth Hour 2025? [Countdown]
There are until Earth Hour 2025
How many months until Earth Hour 2025?
There are 10 Months, 15 Days until Earth Hour 2025
How many weeks until Earth Hour 2025?
There are 45 Weeks, 4 Days until Earth Hour 2025
How many days until Earth Hour 2025?
There are 319 Days until Earth Hour 2025
How many hours until Earth Hour 2025?
There are 7,656 Hours until Earth Hour 2025
How many minutes until Earth Hour 2025?
There are 459,360 Minutes until Earth Hour 2025
When is Earth Hour in United States 2025?
29 March 2025, Saturday is Earth Hour in United States 2025
About: Earth Hour
Earth Hour is a worldwide movement organized by the World Wildlife Fund. The event is held annually, encouraging the individuals, communities, and businesses to give an hour for Earth, and additionally marked by landmarks and businesses switching off non-essential electric lights, for one hour from 8:30 to 9:30 p.m., usually on the last Saturday of March, as a symbol of commitment to the planet. It was started as a lights-off event in Sydney, Australia, in 2007. Occasionally, in years when Holy Saturday falls on the last Saturday of March, Earth Hour is held a week earlier.
| Observed by | World Wildlife Fund for Nature (WWF) |
|---|---|
| Type | International, Movement, World Wildlife Fund (WWF) |
| Significance | Climate change and to save Earth |
| Celebrations | Mass activations to encourage the public to give an hour for the planet, Switching off national and international monuments and landmarks |
| Begins | 8:30 pm |
| Ends | 9:30 pm |
| Date | Last Saturday of March (or the penultimate Saturday of March if the last Saturday coincides with Holy Saturday) |
| last year date | March (. March last year) |
| date | Last Saturday of March (or the penultimate Saturday of March if the last Saturday coincides with Holy Saturday) |
| next year date | March (. March next year) |
| +2 years date | March (. March +2 years) |
| Frequency | Annual |
| Related to | Earth Day |
| Twitter profile | earthhour |
| Instagram profile | earthhourofficial |
| Facebook profile | earthhour |
| Youtube channel | UCyhQYJYlOGyUHhQLHlpNb8g |
| Wikidata description | annual environmental event |
| Wikidata id | Q160145 |
| Wikidata label | Earth Hour |
| Wikidata aliases | Array |
Earth Hour (2025) in other countries.
| S.no. | Country | Date | Holiday | Type |
|---|---|---|---|---|
| 1 | United States | 29 Mar, Saturday | Earth Hour | Worldwide observance |