hey, author here - I want to get on record that I don't think this is silly at all. I think there is something truthful and useful in dividing and conquering time, it's just that generally the bar is so low right now and we should do better!
A quick Google shows 65% of public companies use calendar year as their FY.
At our startup, it's even more complicated :) we use calendar year for official financial / business metrics, while our planning quarter is offset by 1 month (Q1 = Feb/Mar/Apr).
At least you're using the actual months. I've recently had to deal with 4-5-4 Retail Calendars. Explaining to my coworkers why the data for September includes dates from both August and October, and that's Working As Intended.
I can't remember the last time I worked at a corporation that used the actual Gregorian calendar.
Most of the times it's some shadow-Greg calendar that's slightly out of phase. E.g., I think my 2025Q1 starts on 1 Mar? I've never been entirely sure.
Intel used some "work week" concept that I never figured out the rules for, in the entire time I worked there, beyond that it wasn't ISO weeks.
The spirit of the idea is neat, though, and I should build something like this internally but using whatever esocalendar we're using… then I'd be able to remember whether we're +1 mo, +2 mo, 1Y-1mo … or whatever … out of phase with normal people.
> The International Fixed Calendar divides the year into 13 months of 28 days each. A type of perennial calendar, every date is fixed to the same weekday every year. Though it was never officially adopted at the country level, the entrepreneur George Eastman instituted its use at the Eastman Kodak Company in 1928, where it was used until 1989.
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