When Is New Year 2025 Observed Synonym. One list, compiled by the national language resources monitoring and research center, chose to. Scientific significance christmas coincides with the winter solstice, which marks the shortest day and longest night of the year.

New years eve for the year 2025 is celebrated/ observed on tuesday, december 31st. New year’s eve is held on december 31 every year and celebrates the past years achievements and goals with much anticipation.