For the coming weekend and the following Christmas Eve and Christmas Day, Friday, December 21 through Tuesday, December 25, there are no planned maintenance operations adversely affecting service at any local stations. The following work week, from Wednesday, December 26 to Friday, December 28, each night from 9:30 PM until early the following morning (the MTA website doesn’t specify an exact time) there will be no service in either direction at Clark Street or at the 2/3 platforms at Borough Hall. These same nights, from 11:45 PM to 5:00 AM, there will be no service from Manhattan to Court Street or to the N/R platforms at Jay Street-MetroTech. In both instances, the 4 should be available as an option.
For planned service changes that may affect travel on other parts of the system, either during the weekend or the following week, and for unplanned disruptions, see MTA Info.