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strong confidence 10 sources extractive

Based on 10 verified sources covering Thailand, Finland:

Earth Hour 2026 takes place on Saturday, March 28, from 8:30 p.m. This year marks the 20th anniversary of the event, and WWF now presents it as The Biggest Hour for Earth. [1]

Bangkok residents and businesses are being encouraged to switch off non‑essential lights and appliances for one hour on March 28, as part of Earth Hour 2026. [3]

BANGKOK, Thailand – Bangkok has reported a substantial drop in electricity usage during Earth Hour 2025, with the city saving 134 m [4]

BANGKOK, April 1 – Thailand’s capital city, joining the worldwide Earth Hour campaign helped cut power use by 1,528 megawatt and reduced CO2 emission by over 800 tonnes. [5]

The Bangkok Metropolitan Administration (BMA), along with the World Wild Fund (WWF) Thailand and other agencies, have invited the public and businesses to partic [6]

Sources
[1] TH www.chiangraitimes.com · 2026-03-18 · 100% match

Earth Hour 2026: How to Join and Make the Hour Matter

Earth Hour 2026 takes place on Saturday, March 28, from 8:30 p.m. This year marks the 20th anniversary of the event, and WWF now presents it as The Biggest Hour for Earth.

[2] TH www.pattayamail.com · 2013-04-17 · 100% match

Sheraton turns down the lights for ‘Earth Hour’

[3] TH bangkokpost.com · 2023-07-03 · 100% match

Bangkok residents urged to dim lights for Earth Hour

Bangkok residents and businesses are being encouraged to switch off non‑essential lights and appliances for one hour on March 28, as part of Earth Hour 2026.

[4] TH www.pattayamail.com · 2025-03-23 · 100% match

Key landmarks across Bangkok went dark during ‘Earth Hour’ to signal support for climate awareness

BANGKOK, Thailand – Bangkok has reported a substantial drop in electricity usage during Earth Hour 2025, with the city saving 134 m

[5] TH www.pattayamail.com · 2012-04-02 · 100% match

City of Bangkok’s Earth Hour sees more power usage compared to last year

BANGKOK, April 1 – Thailand’s capital city, joining the worldwide Earth Hour campaign helped cut power use by 1,528 megawatt and reduced CO2 emission by over 800 tonnes.

[6] TH www.pattayamail.com · 2023-03-24 · 100% match

Bangkok invites public and businesses to join ‘Earth Hour’ on March 25

The Bangkok Metropolitan Administration (BMA), along with the World Wild Fund (WWF) Thailand and other agencies, have invited the public and businesses to partic

[7] TH www.pattayamail.com · 2016-03-24 · 41% match

Lights out at Dusit Thani Pattaya

Chatchawal Supachayanont GM of the Dusit Thani Pattaya together with Dr. Jirapol Sinthunava, Vice President of the Green Leaf Foundation including staff and management observed Earth Hour on 19 March 2016 by switching off no

[8] FI yle.fi · 2019-01-22 · 40% match

Electrical Grid Operators

[9] TH www.pattayamail.com · 2016-03-31 · 40% match

Athletes hit the stairs at Hilton

Hilton Pattaya held its annual energy conservation campaign for Earth Hour on March 16.

[10] TH www.pattayamail.com · 2016-03-26 · 40% match

Today in History – Sunday, March 27, 2016

Today is Sunday, March 27, the 87th day of 2016. There are 279 days left in the year. Highlights in history on this date: 1512 – Spanish explorer Juan Ponce de Leon sights Florida. 1703 – Russia’s Czar Peter the Great founds city of St. Petersburg.

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How this works
The briefing engine uses semantic search (pgvector embeddings) to find the most relevant articles in the corpus for your question, then extracts key passages with numbered citations. No generative AI is used — all text comes directly from published sources.

Confidence levels
Strong — 5+ relevant sources with high similarity (>50%). The corpus has substantial coverage.
Moderate — 3-4 relevant sources or moderate similarity. Coverage exists but may be incomplete.
Weak — 1-2 sources or low similarity. Evidence is limited — verify independently.
Insufficient — No relevant articles found in the monitored corpus.

Limitations
Briefings reflect only what is in the monitored corpus (142,835 articles). Coverage varies by country and topic. Recent events may not yet be indexed. This is extractive synthesis, not analysis — it shows what sources say, not what to conclude.