Chinese lunisolar* calendar starts on the new moon night between January 19th & February 21st. Traditionally the New Year was celebrated for 2 weeks.
Year of the (Fire) Rooster started 28 Feb 2017, next start: 2/16/18 (dog) & 2/5/19 (pig). Cycle resumes on 25Jan2020, A Year of the Rat, then 12Feb21 (ox), 1Feb22 (tiger) & 22Jan23(rabbit).
(*) - lunisolar, not purely lunar as the Islamic calendar.
The longest day of the year. The extreme of the sun's height, 夏至 xiàzhì is the 10th solar term of the year. "Minor heat" and "Major heat" are ahead of us.