Question 469: Year me out (Dedicated to all those who come to a quiz blog on new year's eve)

To those mentioned in my dedication, to quote Marx
"Nerds of the world unite
You have nothing to lose, coz its already all gone"
Smirk


A for the question, i'll keep it simple


There have been several odd years in the history of the world, like There was no Full Moon in February for the years 1809, 1847, 1866, 1885, 1915, 1934, 1961, 1999.


There were several discrepancies when the Gregorian calendar replaced the Julian, Ten days were omitted from the calendar to bring the calendar back in line with the solstices, and Pope Gregory XIII decreed that the day following Thursday, October 4, 1582 would be Friday, October 15, 1582 and from then on the reformed Gregorian calendar would be used. 


But
Name me one year where they had both new year's eve and new year's day fall on the same day.


Happy new decade/year/month/day to all.
Hopefully next year, our lives would've improved such that we aren't on a quiz blog on new years eve.


Cheers

Answer


Every year has a January first (New year's day)
And a December 31st (New Year's Eve)