Iran public holidays in January 2027

January 2027 in Iran runs 31 calendar days, the depth of Northern-hemisphere winter and Southern-hemisphere summer. Iran does not observe any national public holidays in January 2027. Because all January 2027 holidays fall on the weekend (or there are none), every weekday remains a working day. That leaves 21 working days for Iran businesses, payroll cycles, and project schedules in January 2027. January opens the global calendar with New Year's Day observed in nearly every country and several civic holidays unique to the southern hemisphere. For broader context, see the full 2027 calendar for Iran or the global view of holidays observed in January 2027 across all 190 countries we cover.