Gregorian Calendar 2025 Days And Holidays. This comprehensive calendar ensures every day in january 2025 offers a vibrant mix of cultural, religious, and international events across europe. The julian calendar’s rich tapestry of important dates, holidays, observances, and celebrations in 2025 offers a window into diverse cultural and religious practices.

New year’s day is january 1st, the first day of the year, in the gregorian calendar, and falls exactly one week after the christmas day of the previous year. The gregorian adjustment brings the average year length to 365.2425 days, which is much closer to the solar year compared to the julian calendar’s 365.25 days.