This year’s tree first arrived at Rockefeller Plaza on Nov. 9. Decorating the tree took place over the course of the next few days, with the Swarovski star being raised to the top of the tree on Nov. 13. The Rockefeller Center Tree Lighting for 2019 takes place on Dec. 4. On Christmas day, the lights will shine for a full 24 hours.
According to the Rockefeller Center website, visiting hours for the Christmas tree take place daily from 6 a.m. to midnight (except for on New Year’s Eve, when they are from 6 a.m. to 9 p.m.). Visiting hours last through Friday, Jan. 17, 2020. Presumably, the tree will come down on Saturday, Jan. 18. That’s when the holiday magic really happens.
Source : https://www.distractify.com/p/when-do-they-take-down-rockefeller-center-tree