Gütor (Tib. དགུ་གཏོར་, Wyl. dgu gtor) — the 29th day of the 12th Tibetan lunar month, which is also the second to last day of the year in the Tibetan calendar. During this day, rituals and practices are performed in monasteries and lay people's homes to purify negativity, remove inauspiciousness and avert all obstacles of the previous year.
According to Tibetan custom, gütor is followed, on the 30th day of the last month of the year by a ‘house cleaning day’, spent preparing one's house and shrine for the New Year (Tib. Losar) and its celebrations.
Every year, the Rigpa Tibetan Calendar publishes the corresponding western dates for gütor and other important annual events.