Nyinlog, also known as Nyilog, is a winter solstice celebration observed in Bhutan, recognized as a public holiday. It recurs every January 2 and is celebrated on the seventh day of the eleventh month of the Bhutanese calendar, which is a variant of the lunisolar Tibetan calendar. The name Nyinlog translates to "return of the sun," and the day is considered the most auspicious of the year. Celebrations include feasting and archery, and it is marked similarly to a new year in central and eastern Bhutan, as well as among some western regions. However, Bhutanese farmers may feel a sense of concern as the winter solstice signifies the lengthening of days, leading to increased work in the fields. Nyinlog is one of sixteen public holidays in Bhutan, reflecting the cultural significance of this festive occasion.