New Years Day 2025. New year's day in australia is celebrated on january 1 each year in all states and territories. New year’s marks the start of a new year (january 1st) according to the gregorian.

New year’s day celebrates on 1 january and marks the start of a new year in the usa, follows the gregorian calendar. New year day is a federal holiday and in 2025 new year’s day will fall on wednesday, 1st january 2025.