Spring Equinox Adds Longest Day, Briefest Night Over Hawaii March 2025

Summary: Spring equinox (from Latin aequus nox, “equal night” via ēquinoctium via aequinoctium), adds longest day, briefest night over Hawaii March 2025.

"God talks to human beings through many vectors: through each other, through organized religion, through the great books of those religions, through wise people, through art and music and literature and poetry, but nowhere with such detail and grace and color and joy as through creation. When we destroy a species, when we destroy a special place, we're diminishing our capacity to sense the divine, understand who God is and what our own potential is." Robert Francis Kennedy Jr., April 19, 2023, Boston Park Plaza Hotel, Back Bay, Boston, Massachusetts.

“And there’s many people out there who want us to move to the next planet already and I’m like, hang on, let’s not give up on this planet yet," William, Prince of Wales, July 31, 2023, Sorted Food food truck, London, England, United Kingdom.

The accurate date of the March, spring, vernal equinox accuratizes the accurate date of the annual Easter. Easter Sunday acknowledges the first Sunday after the first full moon after the March, spring, verbal equinox. Both dates activate mainland-Unitedstatesian and other-country arrivals for activities such as those March 19-20, 2025 and April 20, 2025; "Easter sunrise service aboard Battleship Missouri Memorial," obtained April 5, 2015, by Petty Officer 1st Class (PO1) Meranda Keller, Joint Base Pearl Harbor-Hickam (JBPHH), Pearl Harbor, Hawaii: U.S. Navy, Public Domain, via DVIDS Defense Visual Information Distribution Service

Spring equinox, also March equinox, vernal equinox (from Latin aequus nox, “equal night” via ēquinoctium via aequinoctium; vērnus -ālis, “spring -pertaining” via vernālis), adds longest day, briefest night over Hawaii March 2025.

Spring equinox begins 11:01 p.m. and 11:02:46 (11-hours-2-minutes-46-seconds) p.m. Hawaii-Aleutian Standard Time (HST), 10 hours afore Coordinated Universal Time (UCT), at Hilo and Honolulu, Hawaii, respectively. It commences March 19, 20 or 21 in the Northern Hemisphere, where the Hawaiian archipelago (from Greek ἀρχι- πέλαγος, “main[-]sea”) claims it Wednesday, March 19, 2025. It displays at 7:01-7:02 p.m. Chamorro Thursday 20; 10:01-10:02 p.m. Samoa Wednesday 19; 1:01-1:02 a.m. Alaska, 2:01-2:02 Pacific, 3:01-3:02 Mountain, 4:01-4:02 Central, 5:01-5:02 Eastern, Atlantic Thursday.

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The March, spring, vernal equinox actualizes the amplest day, the most abbreviated night over the Hawaiian islands March 19-20, 2025. That date actualizes the full moon dates of March 13, 2025 through March 21, 2025 even as the first full moon date after that equinox addresses the dates April 12, 2025 through April 19, 2025. Easter Sunday 2025 therefore admits an adopting the day after the full-moon dates the Easter-Sunday date of April 20, 2025; "Illustration shows the relative positions and timing of solstice, equinox and seasons in relation to the Earth's orbit around the sun.," diagram created Thursday, Nov. 3, 2011, with Inkscape: Colivine, Public Domain CC0 1.0 Universal, via Wikimedia Commons

Acknowledgment

My special thanks to talented artists and photographers/concerned organizations who make their fine images available on the internet.

Dedication

This post is dedicated to the memory of our beloved blue-eyed brother, Charles, who guided the creation of the Met Opera and Astronomy posts on Earth and Space News. We memorialized our brother in "Our Beloved Blue-Eyed Brother, Charles, With Whom We Are Well Pleased," published on Earth and Space News on Thursday, Nov. 18, 2021, an anniversary of our beloved father's death.

Image credits:

The accurate date of the March, spring, vernal equinox accuratizes the accurate date of the annual Easter. Easter Sunday acknowledges the first Sunday after the first full moon after the March, spring, verbal equinox. Both dates activate mainland-Unitedstatesian and other-country arrivals for activities such as those March 19-20, 2025 and April 20, 2025; "Easter sunrise service aboard Battleship Missouri Memorial," obtained April 5, 2015, by Petty Officer 1st Class (PO1) Meranda Keller, Joint Base Pearl Harbor-Hickam (JBPHH), Pearl Harbor, Hawaii: U.S. Navy, Public Domain, via DVIDS Defense Visual Information Distribution Service @ https://www.dvidshub.net/image/1863781/easter-sunrise-service-aboard-battleship-missouri-memorial;
Public Domain, via Wikimedia Commons @ https://commons.wikimedia.org/wiki/File:Easter_sunrise_service_aboard_Battleship_Missouri_Memorial_150405-N-PA426-002.jpg

The March, spring, vernal equinox actualizes the amplest day, the most abbreviated night over the Hawaiian islands March 19-20, 2025. That date actualizes the full moon dates of March 13, 2025 through March 21, 2025 even as the first full moon date after that equinox addresses the dates April 12, 2025 through April 19, 2025. Easter Sunday 2025 therefore admits an adopting the day after the full-moon dates the Easter-Sunday date of April 20, 2025; "Illustration shows the relative positions and timing of solstice, equinox and seasons in relation to the Earth's orbit around the sun.," diagram created Thursday, Nov. 3, 2011, with Inkscape: Colivine, Public Domain CC0 1.0 Universal, via Wikimedia Commons @ https://commons.wikimedia.org/wiki/File:Orbital_relations_of_the_Solstice,_Equinox_&_Intervening_Seasons.svg

For further information:

"August 2024 Sky Watch." 'Imiloa > Education & Outreach > Sky Lines & Sky Watch.
Available @ https://static1.squarespace.com/static/5ae7c948d274cb3827a2db21/t/66ce59f4fffb954216ae7066/1724799477531/August+2024+Sky+Watch.png

Bernice Pauahi Bishop Museum @BishopMuseum. 31 May 2013. "Aloha Friday Fact! The term 'Lahaina Noon' is relatively new, actually invented in 1990 for a phenomenon long marked by cultures across the Pacific and the tropics more widely. . . ." Facebook.
Available @ https://www.facebook.com/BishopMuseum/photos/a.167268692109/10151654494977110/

Campbell, Kimo. (Ed.). 1997. The Kumulipo: An Hawaiian Creation Myth. Second printing. Honolulu HI: Pueo Press. First Pueo Press edition. San Francisco CA: Pueo Press, 1978. First published by Boston MA: Lee and Shepard, 1897.
Available @ http://www.soest.hawaii.edu/GG/FACULTY/ROWLAND/GG104/Readings/Liliuokalani_1897.pdf

Fenske, Josie. 8 November 2023. “Gemini North Reveals the Formation of Dense Dwarf Galaxy ‘Fossils’.” NSF NOIRLab (U.S. National Science Foundation National Optical-Infrared Astronomy Research Laboratory > Public > News > Press Releases > 2021-2030 > 2023 > noirlab2330 – Science Release
Available @ https://noirlab.edu/public/news/noirlab2330/

"Hawaiian Lunar Month." Hokulea > 'Ike: Knowledge and Traditions > Wayfinding: Modern Methods and Techniques of Non-Instrument Navigation, Based on Pacific Traditions > Hawaiian Voyaging Traditions > Hawaiian Lunar Month.
Available @ https://archive.hokulea.com/ike/hookele/hawaiian_lunar_month.html

Joey; and Gerrit. "Average Weather For Hilo (By Month)." Love Big Island > Menu > Regions > Hilo > Highlights > Highlights For Hilo (City And Outdoors) > Guide to Hilo: Beaches, Favorites Activities, And Day Trips > Table of contents > Weather trends > Local Weather in Hilo > monthly average weather for Hilo. Updated 16 March 2021. Copyright 2011-2023.
Available @ https://www.lovebigisland.com/hilo/average-yearly-weather/

"July 2024 Sky Watch." 'Imiloa > Education & Outreach > Sky Lines & Sky Watch.
Available @ https://imiloahawaii.org/sky-charts

"June 2024 Sky Watch." 'Imiloa > Education & Outreach > Sky Lines & Sky Watch.
Available @ https://imiloahawaii.org/sky-charts

Kawaharada, Dennis. “Lunar Days.” Kapi’olani Community College > Asia-Pacific Digital Library > APDL > Traditions of O’ahu. Copyright Kapi’olani Community College 2001-2004. Last Modified Last Updated 27 February 2023.
Available @ https://guides.library.kapiolani.hawaii.edu/apdl/oahu/days#:~:text=Kukahi%20(first%20Ku)%3A%20moon,to%20the%20shore%20to%20fish.

Kawaharada, Dennis. “Traditions of O'ahu: Seasons & Months.” Kapi’olani Community College > Asia-Pacific Digital Library > APDL > Traditions of O’ahu. Copyright Kapi’olani Community College 2001-2004. Last Modified Last Updated 27 February 2023.
Available @ https://guides.library.kapiolani.hawaii.edu/apdl/oahu/months

"Lāhaina Noon." Bernice Pauahi Bishop Museum > Astronomy Resources.
Available @ https://www.bishopmuseum.org/planetarium/astronomy-resources/lahaina-noon/

Marriner, Derdriu. 17 March 2025. "Spring Equinox Adds Longest Day, Briefest Night Over Hawaii March 2025." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2025/03/spring-equinox-adds-longest-day.html

Marriner, Derdriu. 10 March 2025. "An All-Eclipsed Full Moon Affords No Moonlight Over Hawaii March 20255." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2025/03/an-all-eclipsed-full-moon-affords-no.html

Marriner, Derdriu. 3 March 2025. "Cloudy Skies All But Once Accompany Moon Phases Over Hawaii March 2025." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2025/03/cloudy-skies-all-but-once-accompany.html

Marriner, Derdriu. 24 February 2025. "Makalii Bailer More Than Kawelo's Kite Awes Hawaii Skies February 2025." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2025/02/makalii-bailer-more-than-kawelos-kite.html

Marriner, Derdriu. 17 February 2025. "Stars Amid and Around Star Lines Alighten Hilo, Hawaii February 2025." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2025/02/stars-amid-and-around-star-lines.html

Marriner, Derdriu. 10 February 2025. "Mars Aligns With Six Other Planets Above Hilo, Hawaii February 2025" Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2025/02/mars-aligns-with-six-other-planets.html

Marriner, Derdriu. 3 February 2025. "Moon Phases Alighten Moon-Risen Skies Above Hilo, Hawaii February 2025." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2025/02/moon-phases-alighten-moon-risen-skies.html

Marriner, Derdriu. 27 January 2025. "Star Lines Awe Galaxy-, Moon-, Planet-Lit Hawaiian Skies February 2025." Earth and Space News. Monday. Available @ https://earth-and-space-news.blogspot.com/2025/01/star-lines-awe-galaxy-moon-planet-lit_27.html

Marriner, Derdriu. 20 January 2025. "A Galaxy, a Moon, Planets, Stars Abide Above Hilo, Hawaii January 2025." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2025/01/a-galaxy-moon-planets-stars-abide-above.html

Marriner, Derdriu. 6 January 2025. "Moon Phases Alighten Moon-Risen Skies Over Hilo, Hawaii January 2025." Earth and Space News. Monday. Available @ https://earth-and-space-news.blogspot.com/2025/01/moon-phases-alighten-moon-risen-skies.html

Marriner, Derdriu. 30 December 2024. "‘Maunakea Astronomers Ally Disrupted and Ultra-Compact Dwarf Galaxies." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/12/maunakea-astronomers-ally-disrupted-and.html

Marriner, Derdriu. 23 December 2024. "‘Imiloa December 2024 Sky Watch Aced Hibernal Northern Winter Solstice." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/12/imiloa-december-2024-sky-watch-aced.html

Marriner, Derdriu. 16 December 2024. "Kawelo’s Kite Kalupeakawelo Alightens ‘Imiloa December 2024 Sky Watch." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/12/kawelos-kite-kalupeakawelo-alightens.html

Marriner, Derdriu. 9 December 2024. "‘Imiloa December 2024 Sky Watch Aces 3200 Phaethon Asteroidal Geminids." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/12/imiloa-december-2024-sky-watch-aces.html

Marriner, Derdriu. 2 December 2024. "‘Imiloa December 2024 Sky Watch Accommodates Four Moon Phases." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/12/imiloa-december-2024-sky-watch.html

Marriner, Derdriu. 25 November 2024. "‘Imiloa November 2024 Sky Watch Applauds Makalii and Makahiki Arriving." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/11/imiloa-november-2024-sky-watch-applauds.html

Marriner, Derdriu. 18 November 2024. "Leonid Meteor Shower Alights ‘Imiloa November 2024 Sky Watch." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/11/leonid-meteor-shower-alights-imiloa.html

Marriner, Derdriu. 11 November 2024. "Kawelo’s Kite Kalupeakawelo Amuses ‘Imiloa November 2024 Sky Watch." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/11/kawelos-kite-kalupeakawelo-amuses.html

Marriner, Derdriu. 4 November 2024. "Six Sunny Days Appear for ‘Imiloa November 2024 Sky Watch Moon Phases." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/11/six-sunny-days-appear-for-imiloa.html

Marriner, Derdriu. 28 October 2024. "Keck Observatory Avails ‘Imiloa October 2024 Sky Watch of Porphyrion." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/10/keck-observatory-avails-imiloa-october.html

Marriner, Derdriu. 21 October 2024. "Bailer, Fishline, Kite Star Lines Adorn ‘Imiloa October 2024 Sky Watch." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/10/death-at-sanatorium-acquaints-us-with_01214399686.html

Marriner, Derdriu. 14 October 2024. "‘Imiloa October 2024 Sky Watch Day Two Aced a Partial Solar Eclipse." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/10/imiloa-october-2024-sky-watch-day-two.html

Marriner, Derdriu. 7 October 2024. "‘Imiloa October 2024 Sky Watch Airs Four Moon Phases, No Ancient Trio." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/10/imiloa-october-2024-sky-watch-airs-four.html

Marriner, Derdriu. 30 September 2024. "‘Imiloa September 2024 Sky Watch Admires Planet Saturn Dusk to Dawn." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/09/imiloa-september-2024-sky-watch-admires.html

Marriner, Derdriu. 23 September 2024. "‘Imiloa September 2024 Sky Watch Admitted the Autumnal Equinox Sunday." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/09/imiloa-september-2024-sky-watch-aces.html

Marriner, Derdriu. 16 September 2024. "Imiloa September 2024 Sky Watch Aces Full-Moon Penumbral Lunar Eclipse." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/09/imiloa-september-2024-sky-watch-aces.html

Marriner, Derdriu. 9 September 2024. "‘Imiloa September 2024 Sky Watch Airs Backbone, Fishline, Kawelo Kite Star Lines." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/09/imiloa-september-2024-sky-watch-airs.html

Marriner, Derdriu. 2 September 2024. "‘Imiloa September 2024 Sky Watch Appears Most Active Under Full Moons." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/09/imiloa-september-2024-sky-watch-appears.html

Marriner, Derdriu. 26 August 2024. "Backbone and Chief's Fishline Awe 'Imiloa August 2024 Sky Watch." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/08/backbone-and-chiefs-fishline-awe-imiloa.html

Marriner, Derdriu. 19 August 2024. "Mars and Jupiter Conjunction Alights ‘Imiloa August 2024 Sky Watch." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/08/mars-and-jupiter-conjunction-alights.html

Marriner, Derdriu. 12 August 2024. "Perseids Meteor Shower Maximally Alights ‘Imiloa August 2024 Sky Watch." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/08/perseids-meteor-shower-maximally.html

Marriner, Derdriu. 5 August 2024. "‘Imiloa August 2024 Sky Watch Accepts Two Last-Quarter Moon Phases." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/08/imiloa-august-2024-sky-watch-accepts.html

Marriner, Derdriu. 29 July 2024. "Moons, Planets, Stars Are at ‘Imiloa July 2024 Sky Watch Early Morning." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/07/moons-planets-stars-are-at-imiloa-july.html

Marriner, Derdriu. 22 July 2024. "The Backbone and The Chief’s Fishline Awe ‘Imiloa July 2024 Sky Watch." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/07/the-backbone-and-chiefs-fishline-awe.html

Marriner, Derdriu. 15 July 2024. "‘Imiloa July 2024 Sky Watch Assigns Lahaina Noon Dates, Places, Times." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/07/imiloa-july-2024-sky-watch-assigns.html

Marriner, Derdriu. 8 July 2024. "‘Imiloa July 2024 Sky Watch Accepts Two First-Quarter Moon Phases." Earth and Space News. Monday. Available @ https://earth-and-space-news.blogspot.com/2024/07/imiloa-july-2024-sky-watch-accepts-two.html

Marriner, Derdriu. 1 July 2024. "‘Imiloa July 2024 Sky Watch Adds One More To Ancient Moon Phases." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/07/imiloa-july-2024-sky-watch-adds-one.html

Marriner, Derdriu. 24 June 2024. "'Imiloa June 2024 Sky Watch Morning Planets, Star Cluster, Star Lines." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/06/imiloa-june-2024-sky-watch-morning.html

Marriner, Derdriu. 17 June 2024. "‘Imiloa June 2024 Sky Watch Moon Phases Admit Summer Solstice June 20." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/06/imiloa-june-2024-sky-watch-moon-phases.html

Marriner, Derdriu. 10 June 2024. "‘Imiloa June 2024 Sky Watch Addresses Backbone Star Line Kaiwikuamo’o." Earth and Space News. Monday.
Available @ https://earth-and-space-news.blogspot.com/2024/06/imiloa-june-2024-sky-watch-addresses.html

"November 2024 Sky Watch." 'Imiloa > Education & Outreach > Sky Lines & Sky Watch.
Available @ https://imiloahawaii.org/sky-charts

"September 2024 Sky Watch." 'Imiloa > Education & Outreach > Sky Lines & Sky Watch.
Available @ https://imiloahawaii.org/sky-charts

Thompson, Nainoa. "Hawaiian Star Lines and Names for Stars." Hawaiian Voyaging Traditions > Home > Menu > 'Ike: Knowledge and Traditions > Ho'okele: On Wayfinding > Nainoa Thompson On Wayfinding > Wayfinding: Modern Methods and Techniques of Non-Instrument Navigation, Based on Pacific Traditions > Hawaiian Star Lines.
Available @ https://archive.hokulea.com/ike/hookele/hawaiian_star_lines.html

"Traditional month names, 1895." nupepa. Posted 11 November 2013. Powered by WordPress.
Available @ https://nupepa-hawaii.com/2013/11/21/traditional-month-names-1895/

Wang, K.; E.W. Peng; C. Liu et al. 8 November 2023. "An evolutionary continuum from nucleated dwarf galaxies to star clusters." Nature 623, 296–300 (2023). Received 24 March 2023. Accepted 15 September 2023. Published 8 November 2023. Issue Date 9 November 2023. DOI https://doi.org/10.1038/s41586-023-06650-z"
Available @ https://www.nature.com/articles/s41586-023-06650-z

"Weather in Hilo in December 2024." World Weather > World > United States > Hawaii > Weather in Hilo.
Available @ https://world-weather.info/forecast/usa/hilo/december-2024/

"Weather in Hilo in November 2024." World Weather > World > United States > Hawaii > Weather in Hilo.
Available @ https://world-weather.info/forecast/usa/hilo/november-2024/

"Weather in Hilo in October 2024." World Weather > World > United States > Hawaii > Weather in Hilo.
Available @ https://world-weather.info/forecast/usa/hilo/october-2024/

"Weather in Hilo in September 2024." World Weather > World > United States > Hawaii > Weather in Hilo.
Available @ https://world-weather.info/forecast/usa/hilo/september-2024/

"Weather in Hilo in August 2024." World Weather > World > United States > Hawaii > Weather in Hilo.
Available @ https://world-weather.info/forecast/usa/hilo/august-2024/

"Weather in Hilo in July 2024." World Weather > World > United States > Hawaii > Weather in Hilo.
Available @ https://world-weather.info/forecast/usa/hilo/july-2024/

"Weather in Hilo in June 2024." World Weather > World > United States > Hawaii > Weather in Hilo.
Available @ https://world-weather.info/forecast/usa/hilo/june-2024/

Yuen, Leileihua. "Kaulana Mahina - The Hawaiian Lunar Calendar." Ka'ahele Hawaii Writing for and about Hawai'i since 1993 > Ka Moomeheu o Hawaii - The Culture of Hawaii > Ao Hōkū - Hawaiian Astronomy.
Available @ https://www.kaahelehawaii.com/kaulana-mahina-the-hawaiian-lunar-calendar/