Machine learning nonsense would be the boring answer but I can’t resist trying to work out the pattern.

as a guess, there's some sort of popular event, and the march 2022 occurence of it ran from the 17-20th. and some ranking algorithm has decided we're all more likely to mean the event in march 2022 than the month of march 2022.

for instance, that was st patricks day weekend

Guessing...

On March 17 there was some agency news giving information on when does the astronomical or calendar winter end. It got parsed wrong by Google AI, confusing March with winter and news publication with start

I'm assuming there was some event that took place over that span that was named like "last day" or something?