Beginning at 5:00 a.m. on Monday, April 2nd, the Coney Island-bound F train and the Church Avenue-bound G train will both be stopping at the 15 Street-Prospect Park and the Fort Hamilton Parkway subway stations. I'm not joking, it's true!
Please note that from Saturday, March 31st, at 12:01 a.m. until Monday, April 2nd, at 5:00 a.m., the F train won't be running from Jay Street-Metrotech to 18th Avenue, and the G train won't be running from Hoyt-Schermerhorn to Church Avenue. Instead, the MTA will provide alternate service with free shuttle buses. Shuttle bus service begins thirty minutes prior to the service change (11:31 p.m. on Saturday).
More details are on the MTA website at http://travel.mtanyct.info/serviceadvisory/routeStatusResult.aspx?tag=F&date=3%2f31%2f2012&time=&method=getstatus4 .