Narvinyë (Narwain in Sindarin) was the first month of the year in the Kings' Reckoning and the Stewards' Reckoning. In both calendars, Narvinyë followed the first day of the year, yestarë, preceded the month of Nénimë, and was 30 days long, lasting from the 2nd through the 31st days of the year. In the New Reckoning it was the tenth month of the year, immediately following Ringarë.
Narvinyë in the Kings' and Stewards' Reckoning corresponded to Afteryule in the Shire Calendar (approximately modern 23 December through 21 January). Its name meant 'new year' (or, literally, 'new sun').