January 2025 Calendar Holidays And Observances Number. January 2025 has 21 work days. New year’s day is january 1st, the first day of the year, in the gregorian calendar, and falls exactly one week.

January 2025 is filled with important days that mark significant global and national observances. New year’s day is january 1st, the first day of the year, in the gregorian calendar, and falls exactly one week.