On Days and Years, and Their Origins

[iad58]

מזל טוב לwildernesscat אשר בן 13 אלף ימים היום!

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An attempt to verify the existence of this correlation. Probably doomed from the outset, as cultures influence one another, nor are seasons the same in all climates. (Unprocessed data from the 'Net.)

	sunset	midnight	sunrise	?
autumn	Jewish (Rosh ha-Shanah, 5.9.–5.10.) Celtic (Samhain, late Oct)	French Revolutionary (1 Vendemière: autumnal equinox)	Egyptian (Nile's flooding: late Sep) Jain (Diwali, Oct/Nov) Ethiopian (Enkutatash, 11.9.–12.9.)
winter		late Roman, Modern (1.1.)
spring	Babylonian (new moon after vernal equinox) Bahá'í (vernal equinox, 21.3.)	Chinese (21.1.–21.2.) early Roman (1.3.)	Hindu (1 Mesha, ≈15.4.) Zoroastrian (vernal equinox, 21.3.)	Tibetan (Losar, Jan/Mar) Telugu (Mar/Apr) Thai, Cambodian (13.4.–15.4.) Bengali (Poila Baisakh: 14.4.–15.4.)
?	Greek, Islamic	Teuton	Swahili (Mwaka koga)