(3c) early evenings in the peak direction – 8:00 p.m.(1a) rush hours in the peak direction (toward Manhattan in the morning, away from Manhattan in the afternoon).The MTA defines time periods as follows these are used in articles (sometimes abbreviated by numbers in superscript or the symbol indicated): The schedule is divided into different periods, with each containing different operation patterns and train intervals. The New York City Subway is one of the few subways worldwide operating 7 days a week, 24 hours a day, every day of the year. The services that run on certain lines change periodically. In the New York City Subway nomenclature, numbered or lettered 'services' use different segments of physical trackage, or 'lines'. This article lists all the current services, along with their lines and terminals and a brief description see Unused New York City Subway service labels for unused and defunct services. Each service has a table in its article to show what tracks are used and when. The subway normally operates 24 hours a day with five different service patterns: rush-hour, midday, evening, weekend and late-night. The letter S is used for three shuttle services: the Rockaway Park Shuttle, Franklin Avenue Shuttle, and 42nd Street Shuttle.The F has portions of express and local service, but during rush hours, an express variant of the route, designated by a diamond-shaped route marker, is operated alongside the local in Brooklyn in the peak direction.The 6 and 7 are fully local, but during rush hours, express variants of the routes, designated by diamond-shaped route markers, are operated alongside the locals in the peak direction.Both run local, express or skip-stop on different parts of their route. The J train normally operates local, but during rush hours it is joined by the Z train in the peak direction.The 2, 3, 4, 5, A, B, D, E, N, and Q trains have portions of express and local service.The 1, C, G, L, M, R, and W trains are fully local, making all stops.The New York City Subway system has 28 lettered or numbered route designations.

(clockwise from top left) on rolling stock

Route bullets for the 3, N, 7, and D services

Mta subway schedule