Here's a look at the MTA service changes this weekend.

No. 1 trains, 11:45 p.m. Friday through 5 a.m. Tuesday

South Ferry-bound trains will run express from 72nd to Chambers streets.

No. 2 trains, 12:01 a.m. Saturday through 5 a.m. Tuesday

Flatbush Avenue-bound trains will run express from 72nd to Chambers streets.

Wakefield-bound trains run local from Chambers to 96th streets.

No. 3 trains, 12:01 a.m. Saturday through 5 a.m. Tuesday

Harlem-bound trains will run local from Chambers to 96th streets.

11:45 p.m. Friday through 5 a.m. Tuesday

Trains will replace No. 4 trains in Brooklyn.

No. 4 trains, 11:45 p.m. Friday to 5 a.m. Tuesday

There will be no trains between Brooklyn Bridge and Utica Avenue/New Lots Avenue.

12:01 a.m. Saturday through 5 a.m. Tuesday

Downtown trains will run local from Grand Central-42nd Street to Brooklyn Bridge.

Downtown trains will skip 116th, 110th, 103rd, 96th, 77th, 68th and 51st streets.

Woodlawn-bound trains will run local from Brooklyn Bridge to 125th Street.

No. 5 trains, 12:01 a.m. Saturday through 5 a.m. Tuesday

There will be no trains between East 180th Street and Dyre Avenue.

Saturday through Monday

There will be no train service between Grand Central-42nd Street and Bowling Green.

Trains will run every 20 minutes between East 180 Street and Grand Central-42nd Street.

No. 6 trains, 11:45 p.m. Friday through 5 a.m. Tuesday

Brooklyn Bridge-bound trains will skip 116th, 110th, 103rd, 96th, 77th, 68th and 51st streets.

A trains, 11:45 p.m. Friday through 5 a.m. Monday

Ozone Park/Far Rockaway-bound trains will skip 135th, 116th, 110th, 103rd, 96th, 86th, 81st and 72nd streets.

C trains, Saturday and Sunday

Euclid Avenue-bound trains will skip 135th, 116th, 110th, 103rd, 96th, 86th, 81st and 72nd streets.

E trains, 11:45 p.m. Friday through 5 a.m. Tuesday

World Trade Center-bound trains will skip 67th Avenue, 63rd Drive, Woodhaven Boulevard, Briarwood, Grand, Elmhurst and 75th avenues.

L trains, 11:30 p.m. Friday through 5 a.m. Tuesday

There will be no train service between Broadway Junction and Eighth Avenue.

B trains, Saturday through Monday

There are no B trains on weekends.

F trains, 11:45 p.m. Friday through 5 a.m. Tuesday

Coney Island-bound trains will skip Sutphin Boulevard, Briarwood and 75th Avenue.

M trains, Saturday through Monday

Service is extended to the 96th Street Q station in Manhattan.

N trains, 11:45 p.m. Friday through 5 a.m. Tuesday

There will be no trains between Queensboro Plaza and Ditmars Boulevard.

11:30 p.m. Friday through 5 a.m. Monday

Trains will stop at 45th Street in both directions.

Q trains, 10:45 p.m. Friday through 5 a.m. Tuesday

Coney Island-bound trains will run express from Prospect Park to Sheepshead Bay.

R trains, Saturday through Monday

Manhattan-bound trains will skip 67th Avenue, 63rd Drive, Woodhaven Boulevard, Grand and Elmhurst avenues.

11:30 p.m. Friday through 5 a.m. Monday

Trains will not run between 36th Street in Brooklyn and 95th Street.

W train, Saturday through Tuesday

W trains do not run on weekends.

Z train, Saturday through Tuesday

Z trains do not run on weekends.