Supernatural's 12th season began in October of 2016.
 Astronomically, the seasons are said to begin on Lichun (, "the start of spring") on about 4 February, Lixia () on about 6 May, Liqiu () on about 8 August, and Lidong () on about 7 November
 Eventually, from mid-November to mid-January, there is no twilight and it is continuously dark

