That’s almost what I posted in “Bug Hunt” (https://forum.magicmirror.builders/topic/915/today-on-november-1st-the-calendar-labels-a-birthday-on-october-31st-as-two-days-ago) a while ago.

It might be mathematically right, but intuitively it’s wrong.
I have a meeting on Saturday and one on Sunday, the one on Saturday is “in 4 days”, the one on Sunday is “in 6 days”.
That’s irritating.

But your problem, @creepwood, might be different. Please check the date/time of your raspi. ;)