holidays

Mole Day (International observance)

Mole Day

Unofficial holiday related to chemistry

Mole Day is an unofficial holiday celebrated among chemists, chemistry students, and chemistry enthusiasts on October 23 between 6:02 a.m. and 6:02 p.m., making the date 6:02 10/23 in either MDY or YMD date formats. The time and date are derived from the Avogadro constant, which…
Source: Wikipedia (CC BY-SA)

Lists of holidays

Lists of holidays by various categorizations.
Source: Wikipedia (CC BY-SA)