(with-eval-after-load 'holidays
  (setopt
   holiday-other-holidays
   '((holiday-fixed 01 01 "New Year's Day")
     (holiday-fixed 02 02 "Misc: Groundhog Day (US)")
     (holiday-fixed 02 12 "Darwin day")
     (holiday-fixed 03 08 "Misc: International Women's Day")
     (holiday-fixed 03 14 "Pi Day (03-14-YEAR)")
     (holiday-fixed 03 26 "National Science Appreciation Day (US)")
     (holiday-fixed 04 01 "Misc: April Fools' Day")
     (holiday-fixed 05 25 "Geek Pride Day")
     (holiday-fixed 05 25 "Towel Day")
     (holiday-fixed 06 01 "Misc: Children's Day")
     (holiday-fixed 12 24 "Festivus (Seinfeld)")
     (holiday-float 05 00 02 "Mother's Day")
     (holiday-float 06 00 03 "Father's Day")
     (holiday-float 11 04 04 "Thanksgiving (US)"))))