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October 2020
delete iconadd icon346 days until Mole Day
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Friday October 23, 2020 (10/23/2020) at <a class='DU_date_ref_link' href='http://en.wikipedia.org/wiki/Midnight' title='midnight (00:00) before noon on this date'>midnight</a>
Method: October 23rd on Gregorian calendar
Length: 1 day
Period: 1 year

Mole Day is an unofficial holiday celebrated among chemists on October 23, between 6:02 AM and 6:02 PM,[1][2][3] making the date 6:02 10/23 in the American style of writing dates. The time and date are derived from Avogadro's number, which is approximately 6.02×1023, defining the number of particles (atoms or molecules) in one mole of substance, one of the seven base SI units.

Mole Day originated in an article in The Science Teacher in the early 1980s.[4] Inspired by this article, Maurice Oehler, now a retired high school chemistry teacher from Prairie du Chien, Wisconsin, founded the National Mole Day Foundation (NMDF) on May 15, 1991.[4]

October 2021
delete iconadd icon711 days until Mole Day
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Saturday October 23, 2021 (10/23/2021) at <a class='DU_date_ref_link' href='http://en.wikipedia.org/wiki/Midnight' title='midnight (00:00) before noon on this date'>midnight</a>
October 2022
delete iconadd icon1076 days until Mole Day
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Sunday October 23, 2022 (10/23/2022) at <a class='DU_date_ref_link' href='http://en.wikipedia.org/wiki/Midnight' title='midnight (00:00) before noon on this date'>midnight</a>
October 2023
delete iconadd icon1441 days until Mole Day
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Monday October 23, 2023 (10/23/2023) at <a class='DU_date_ref_link' href='http://en.wikipedia.org/wiki/Midnight' title='midnight (00:00) before noon on this date'>midnight</a>
October 2024
delete iconadd icon1807 days until Mole Day
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Wednesday October 23, 2024 (10/23/2024) at <a class='DU_date_ref_link' href='http://en.wikipedia.org/wiki/Midnight' title='midnight (00:00) before noon on this date'>midnight</a>
October 2025
delete iconadd icon2172 days until Mole Day
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Thursday October 23, 2025 (10/23/2025) at <a class='DU_date_ref_link' href='http://en.wikipedia.org/wiki/Midnight' title='midnight (00:00) before noon on this date'>midnight</a>
October 2026
delete iconadd icon2537 days until Mole Day
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Friday October 23, 2026 (10/23/2026) at <a class='DU_date_ref_link' href='http://en.wikipedia.org/wiki/Midnight' title='midnight (00:00) before noon on this date'>midnight</a>
October 2027
delete iconadd icon2902 days until Mole Day
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Saturday October 23, 2027 (10/23/2027) at <a class='DU_date_ref_link' href='http://en.wikipedia.org/wiki/Midnight' title='midnight (00:00) before noon on this date'>midnight</a>
October 2028
delete iconadd icon3268 days until Mole Day
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Monday October 23, 2028 (10/23/2028) at <a class='DU_date_ref_link' href='http://en.wikipedia.org/wiki/Midnight' title='midnight (00:00) before noon on this date'>midnight</a>
October 2029
delete iconadd icon3633 days until Mole Day
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Tuesday October 23, 2029 (10/23/2029) at <a class='DU_date_ref_link' href='http://en.wikipedia.org/wiki/Midnight' title='midnight (00:00) before noon on this date'>midnight</a>

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