Earth Hour

United States • March 28, 2026 • Saturday

85
Days
04
Hours
33
Mins
00
Secs
until Earth Hour
America/New_York timezone

Holiday Details

Holiday Name
Earth Hour
Date
March 28, 2026
Day of Week
Saturday
Status
85 days away
Weekend
Falls on weekend
About this Holiday
Earth Hour is an annual event in which many people worldwide turn their lights off on the last Saturday in March.

About Earth Hour

Also known as: Earth Hour

Earth Hour in the United States: A Global Movement for the Planet

Earth Hour is one of the most significant grassroots environmental movements in the world, and its impact within the United States has been profound. Every year, millions of Americans join a global community to turn off their non-essential lights for one hour as a symbolic gesture of solidarity and commitment to the protection of our planet. While it began as a simple "lights-off" event, it has blossomed into a massive platform for environmental advocacy, pushing for legislative changes, corporate responsibility, and individual lifestyle shifts. In the United States, Earth Hour serves as a powerful reminder that collective action, even for just sixty minutes, can illuminate the path toward a more sustainable future.

What makes Earth Hour particularly special in the American context is the participation of iconic landmarks. When the bright lights of the Las Vegas Strip, the towering spire of the Empire State Building, and the majestic faces of Mount Rushmore go dark simultaneously, it sends a visual message that resonates far beyond the borders of the country. This "wave of darkness" travels across the four major time zones of the contiguous United States—Eastern, Central, Mountain, and Pacific—creating a rolling demonstration of environmental unity. It is a moment of quiet reflection in a country known for its bustling energy and constant movement, allowing citizens to pause and consider their relationship with the natural world.

Beyond the symbolism, Earth Hour in the U.S. has evolved into a call for tangible action. It is no longer just about sitting in the dark; it is about what we do after the lights come back on. The World Wildlife Fund (WWF), which organizes the event, has increasingly focused on the "Hour Bank," an initiative that encourages participants to spend that hour—and subsequent hours—engaging in "planet-positive" activities. Whether it is learning about renewable energy, reducing plastic waste, or advocating for local conservation efforts, Earth Hour acts as the annual kickoff for a year-round commitment to the Earth.

When is Earth Hour in 2026?

In the United States, Earth Hour is observed on the last Saturday of March. This timing is strategic, coinciding with the spring equinox in the Northern Hemisphere, which ensures that sunset occurs around the same time across many regions, maximizing the visual impact of the lights going out.

For the upcoming observance:

  • Day of the week: Saturday
  • Date: March 28, 2026
  • Time: 8:30 p.m. to 9:30 p.m. (local time)
  • Countdown: There are 84 days remaining until the event.
The date of Earth Hour is variable, as it is tied to the final Saturday of March each year. On rare occasions, the date may be moved if it clashes with major religious holidays like Holy Saturday, but for 2026, it remains on its traditional schedule. Because it is observed at 8:30 p.m. local time, the event rolls across the United States in stages, beginning on the East Coast and ending in Hawaii and Alaska.

History and Origins of the Movement

The story of Earth Hour began in Sydney, Australia, in 2007. The World Wildlife Fund (WWF) Australia wanted to find a creative way to engage the public on the issue of climate change. What started as a local initiative involving 2.2 million individuals and 2,000 businesses quickly captured the world's imagination. By 2008, Earth Hour had gone global, and the United States became a pivotal player in its expansion.

In the U.S., the movement found fertile ground. American cities, known for their high energy consumption and brightly lit skylines, offered a dramatic canvas for the event. By 2010, the scale of participation in the United States was staggering, with an estimated 90 million people taking part. This was the year that truly cemented Earth Hour as a staple of the American environmental calendar. Major corporations began to see the value in participating, not just as a PR move, but as a way to engage employees in sustainability goals.

Over the years, the focus of Earth Hour in America has shifted from general climate awareness to specific conservation goals. The WWF has used the platform to highlight the plight of endangered species, the importance of forest restoration, and the urgent need to transition to a clean energy economy. The U.S. government has also recognized the event at various levels, with many governors and mayors issuing official proclamations to encourage their constituents to participate.

How Americans Celebrate Earth Hour

While Earth Hour is a global event, Americans have developed their own unique ways of observing the "60 minutes for the planet." Because the event takes place on a Saturday night, it often takes on a social or community-focused character, though it remains largely a grassroots, home-based effort.

Individual and Household Participation

For most Americans, celebration begins at home. At 8:30 p.m. sharp, families switch off all non-essential lights. This often leads to "candlelit" dinners, acoustic music sessions, or storytelling. In a digital age, many families use the hour as a "digital detox," putting away smartphones and tablets to focus on face-to-face conversation. It is a popular time for parents to teach children about energy conservation and why the Earth needs our help.

Community and Grassroots Events

In many American towns and cities, local environmental groups organize stargazing events. Since the reduction in light pollution—even if only for an hour—improves the visibility of the night sky, amateur astronomers often set up telescopes in public parks. Other communities host "candlelight walks" or "lantern parades" (using LED or solar-powered lanterns) to promote local conservation projects.

The "Hour Bank" and Action-Oriented Participation

In recent years, the U.S. has seen a shift toward the "Hour Bank" concept. Participants are encouraged to "give an hour for Earth" by doing something productive. This might include:
  • Sustainability Education: Watching a documentary about the environment or reading about local wildlife.
  • Nature Engagement: Spending time in a local park or backyard to appreciate biodiversity.
  • Direct Action: Cleaning up litter in a neighborhood or starting a compost bin.
  • Advocacy: Signing petitions or writing to local representatives about environmental policies.

Landmark Participation

The visual highlight of Earth Hour in the U.S. is undoubtedly the darkening of famous structures. In New York City, the Empire State Building and the Chrysler Building turn off their decorative lighting. In Chicago, the Willis Tower and the pier lights go dark. In San Francisco, the Golden Gate Bridge participates by dimming its non-safety lights. Even the neon-soaked Las Vegas Strip sees a significant reduction in brightness, as major resorts turn off their massive signs and marquees.

Traditions and Customs

Unlike traditional holidays with specific foods or costumes, Earth Hour’s customs are centered around the absence of modern conveniences and the presence of nature.

  1. The "Switch-Off" Moment: There is a sense of shared anticipation as 8:30 p.m. approaches. Many people post "before and after" photos on social media to document the change in their environment.
  2. Candlelight and Low-Light Activities: Using beeswax or soy candles (which are more environmentally friendly than paraffin) has become a common practice. Board games by candlelight or shadow puppet theater for children are popular "traditions" that have emerged within American households.
  3. The Pledge: Many Americans use Earth Hour to make a "Green Pledge." This is a commitment to a specific change for the coming year, such as eliminating single-use plastics, switching to a plant-based diet one day a week, or upgrading to energy-efficient appliances.
  4. Stargazing: In suburban and rural areas, the tradition of gathering in the backyard to look at the stars is a favorite. Without the glare of porch lights and streetlamps, the Milky Way becomes more visible, fostering a sense of awe for the universe.

Practical Information for Participants

If you are in the United States during Earth Hour 2026, participating is incredibly simple and requires no financial investment.

Safety First: While the goal is to turn off lights, safety should always be the priority. Do not turn off essential safety lighting, such as streetlights, hallway lights in apartment buildings, or security lighting. If you are using candles, never leave them unattended and keep them away from flammable materials. Many people now prefer battery-operated LED candles as a safer alternative.

For Visitors and Expats: If you are visiting a major U.S. city during Earth Hour, do not be alarmed if the skyline suddenly looks different. It is a planned event. This is a great time to visit a high-altitude observation deck (that remains open) to see the city go dark. If you are taking photographs, remember that long-exposure shots will work best, but avoid using a flash, as it disrupts the atmosphere for others.

Business Participation: Businesses are encouraged to turn off their lighted signs and non-essential interior lights. For many American offices, this is a chance to audit their energy use and commit to more sustainable building management practices. Retail stores often dim their lights but remain open for business.

Weather Conditions: Since Earth Hour takes place in late March, the weather in the United States can vary wildly. In the South and Southwest, it is usually a mild spring evening, perfect for outdoor activities. In the Northeast and Midwest, it can still be quite chilly or even snowy, so indoor candlelight activities are more common.

The Impact of Earth Hour in the U.S.

The impact of Earth Hour in the United States is measured in more than just kilowatt-hours saved. While the immediate reduction in electricity use during that sixty-minute window is measurable, the real value lies in the long-term behavioral changes it inspires.

Studies have shown that participants in Earth Hour are more likely to adopt sustainable habits throughout the rest of the year. In the U.S., the event has been used as a springboard for major environmental campaigns. For example, the WWF has used Earth Hour to gather support for the protection of the Arctic National Wildlife Refuge and to advocate for the transition to electric vehicles.

Furthermore, Earth Hour provides a rare moment of bipartisan environmental unity. In a politically divided landscape, the simple act of turning off a light for the planet is something that Americans from all walks of life and political persuasions can agree on. It emphasizes the shared responsibility we have toward our "common home."

Is it a Public Holiday?

It is important to note that Earth Hour is not a public holiday in the United States.

  • Closures: There are no mandatory closures of government offices, post offices, banks, or schools. Everything operates on a normal Saturday schedule.
  • Business Hours: Retail stores, restaurants, and entertainment venues remain open. Some may choose to dim their lights or host special Earth Hour-themed events (like "dining in the dark"), but they do not close.
  • Public Transport: Buses, subways, and trains continue to run on their standard Saturday schedules.
  • Work: Since it is not a federal or state holiday, there is no "day off" associated with it. However, because it occurs on a Saturday evening, most people are already off work and able to participate from their homes.
Earth Hour is strictly a voluntary, grassroots event. Its power comes not from government mandate, but from the individual choice of millions of Americans to stand up for the environment.

Summary of Earth Hour 2026

As we look forward to March 28, 2026, Earth Hour stands as a testament to the enduring spirit of American environmentalism. From the bustling streets of Manhattan to the quiet suburbs of the Midwest and the rugged coastlines of the Pacific Northwest, the United States will once again join the rest of the world in a moment of silence and darkness.

Whether you spend the hour stargazing, discussing sustainability with your family, or simply enjoying the quiet of a darkened room, your participation contributes to a global message. In 2026, let the hour be more than just a gesture. Let it be the start of a new chapter in how we care for the American landscape and the planet at large. With 84 days to go, now is the perfect time to plan how you will spend your sixty minutes for the Earth. Remember, while the lights go out for only an hour, the commitment to our planet must shine bright all year long.

Frequently Asked Questions

Common questions about Earth Hour in United States

Earth Hour 2026 will take place on Saturday, March 28, 2026. There are 84 days remaining until the event begins. In the United States, the designated time for the observation is from 8:30 p.m. to 9:30 p.m. local time across all time zones. This timing ensures that as the clock strikes 8:30 p.m. in each region, a wave of darkness travels across the country, from the Atlantic coast to the Pacific, symbolizing a collective national and global commitment to environmental protection and energy conservation.

No, Earth Hour is not a public holiday. It is a voluntary environmental awareness event. Because it is not a federal or state holiday, there are no mandatory closures for government offices, schools, or businesses. Post offices and banks maintain their regular Saturday hours. The event is designed to be a grassroots initiative where individuals, communities, and corporations choose to participate without disrupting essential services or public infrastructure. It remains a symbolic gesture rather than a day of rest or official business suspension.

Earth Hour was started by the World Wildlife Fund (WWF) in Sydney, Australia, in 2007 as a simple lights-off event to raise awareness about climate change. It quickly grew into a global movement, with the United States becoming a major participant early on. By 2010, an estimated 90 million Americans were taking part. The meaning of the event has evolved from a simple one-hour energy reduction into a broader symbol of commitment to the planet. It serves as a visual reminder of the urgent need for sustainable practices and global cooperation to protect the environment.

In the United States, participation is generally low-key and focused on personal or community-level actions. The primary tradition is turning off all non-essential lights and appliances for exactly 60 minutes. Many Americans use this hour for 'planet-positive' activities such as taking nature walks, having candlelit dinners, or engaging in family discussions about reducing waste and energy consumption. Recently, there has been a shift toward the 'Hour Bank' concept, where participants track various environmental actions like planting trees or cleaning up local parks, moving the focus from just turning off lights to taking tangible steps for the Earth.

The United States is known for its iconic landmarks going dark during Earth Hour. In previous years, famous sites such as the Empire State Building in New York City, the Las Vegas Strip, Mount Rushmore in South Dakota, and Niagara Falls have all turned off their exterior decorative lighting. Seeing these massive, world-renowned structures go dark provides a powerful visual message of unity. Major cities like Chicago, San Francisco, and Washington D.C. often see their skylines change significantly for that one hour as skyscrapers and monuments join the movement.

Visitors should be aware that Earth Hour is a safe and inclusive event. If you are in a major city, do not be alarmed if famous monuments or building lights suddenly dim at 8:30 p.m. local time. It is considered respectful to avoid using flash photography near darkened landmarks during this period. For those staying in hotels, participation is usually voluntary, but many hotels will dim lights in lobbies or restaurants. It is a great time for low-light activities like stargazing in public parks, provided the spring weather is mild, which is common in late March.

Unlike traditional holidays with parades or specific foods, Earth Hour customs in the U.S. are centered on sustainability and reflection. Common practices include hosting candlelit gatherings, organizing community stargazing events, or participating in local 'clean-up' drives earlier in the day. The '60+' logo often seen during the event symbolizes the idea of going beyond the 60 minutes of darkness. Many American households use the time to pledge new habits, such as switching to LED bulbs, reducing plastic use, or starting a compost bin, making the hour a catalyst for long-term lifestyle changes.

Business participation is entirely voluntary and highly encouraged as a sign of corporate social responsibility. U.S. businesses can participate by turning off non-essential signage, decorative facade lighting, and interior lights that are not needed for safety or security. Many companies also use the lead-up to Earth Hour to educate employees about energy efficiency or to announce new green initiatives. There is no official registration fee; businesses can simply join in and share their participation on social media to help spread awareness within their local communities.

Historical Dates

Earth Hour dates in United States from 2010 to 2025

Year Day of Week Date
2025 Saturday March 29, 2025
2024 Saturday March 23, 2024
2023 Saturday March 25, 2023
2022 Saturday March 26, 2022
2021 Saturday March 27, 2021
2020 Saturday March 28, 2020
2019 Saturday March 30, 2019
2018 Saturday March 24, 2018
2017 Saturday March 25, 2017
2016 Saturday March 19, 2016
2015 Saturday March 28, 2015
2014 Saturday March 29, 2014
2013 Saturday March 23, 2013
2012 Saturday March 31, 2012
2011 Saturday March 26, 2011
2010 Saturday March 27, 2010

Note: Holiday dates may vary. Some holidays follow lunar calendars or have different observance dates. Purple indicates weekends.

About United States

Country Code
US
Continent
North America
Total Holidays
166