972
xkcd #2846: Daylight Saving Choice
(imgs.xkcd.com)
Alt text:
I average out the spring and fall changes and just set my clocks 39 minutes ahead year-round.
According to the video I linked, it's not though. It's based on an estimate of the Agricultural Revolution. I think keeping it attached to the year 2023 is a just nice compromise that allows us to keep some fluidity between our previous year-system and Christians that would be upset. Everyone wins and we could move forward from this outdated system.
That's still based on Jesus's birth year, it's not the same as saying something like "We're trying to standardize, we know the agricultural revolution happened about 12k years ago, let's go back 12k years from the biggest standardization event in human history, i.e. the metre convention, that means current year is 12148."
No shift in the day of the year (or the date/month in other words)