Can you change your date and time to Christmas to capitalize on the reindeer cookies that give a minimum of 25 cookies instead of the golden cookies

Yes it's allowed, but you will submit to the holidays leaderboard in the ce board xD https://www.speedrun.com/cclickermemes#Holiday_-_True_Neverclick

i believe that would be in the holiday category accessible on the category extensions page but i don;t run this game very much so i may be wrong