In the 'Gregorian' calendar, 'New Year' occurs January 1, 'New Year's Day'. This was also the first day of the year in the original 'Julian' calendar and 'Roman' calendar after 153 BC:
Take a look at more footage from “Rebel Moon Part 2: The Scargiver” directed by Zack Snyder, streaming April 19, 2024 on Netflix: