Cattle Turnip, Saturday, 22 November 12025 HE
Turneps, Duodi, 2 Frimaire An CCXXXIV
F, a.d. X Kal. Dec. AUC MMDCCLXXVIII
13.0.13.1.19, 4 Kawak 17 Keh, Piltzintecuhtli
19X04 | 2461002
2015-03-28 – Olympus PEN E-PL1
reservoir panorama, Pinnacles National Park, California
No Mercy – “Please Don’t Go” ↗
I’ve been having fun playing with different calendar formats – some are quick
and easy (just figuring out what format to feed to date) – some
I rely on a lookup file (ex. French Republican) – one requires some integer math
(and ash only does integer math) – but then I started looking at
lunisolar calendars
lunar months are roughly ~29.5 days (which obviously doesn’t fit into the ~365.24 days of a solar year) – lunar months generally get rounded to either 29 or 30 days (but not the same way across multiple lunar years) – to even things out, a lunar leap month is added in roughly every 3 years (but again, not inserted in the same place each time)
so, I can figure out how to implement some rather gnarly math to calculate things each time – OR – I can build multiple yearly lookup tables (an ephemeris) and rely on everyone else who’s already done the work and the math and the fitting
the day after
the day before
the month before
the quarter before
the year before