The days are getting shorter, the planet is warming, Donald Trump advances toward the golden throne, and this morning Drake posted an Instagram photo of Taylor Swift. Is it a sign? We'll find out Tuesday.

Anyway, here are this weekend's train changes, which don't affect me that much because I'm going to Pennsylvania to canvass for Hillary.

All 1 trains will run every 16 minutes between 137 St and Wakefield-242 St from 6:30 a.m. to 7 p.m. on Saturday. Some Bronx-bound trains will terminate at 137 St during this period. Downtown trains will run express from Van-Cortlandt Park-242 St to 215 St from 3:45 a.m. to 8 p.m. Saturday.

Manhattan-bound 2 trains will run express from Franklin Av to Atlantic Av-Barclays Ctr, starting at 11:45 p.m. Friday and ending at 5 a.m. Monday. Trains will operate in two sections—between Flatbush Av-Brooklyn College and E 180 St, and via the 5 to/from Eastchester-Dyre Av; and between E 180 St and Wakefield-241 St, with that change in effect from 3:45 a.m. to 8 p.m. on Saturday. E 180 St-bound trains will also run express from Wakefield-241 St to E 180 St from 3:45 a.m. to 8 p.m. Saturday.

Manhattan-bound 3 trains will run express from Franklin Av to Atlantic Av-Barclays Ctr from 6:30 a.m. to midnight on Saturday and Sunday.

Manhattan-bound 4 trains run express from Franklin Av to Atlantic Av-Barclays Ctr from 11:45 p.m. Friday to 7:30 a.m. Sunday, and again from 11:45 p.m. Sunday to 5 a.m. Monday.

Brooklyn Bridge-City Hall bound 6 trains will run express from Pelham Bay Park to Parkchester from 6:45 a.m. to 6 p.m. Saturday and Sunday.

All A trains will run express from 168 St to 125 St from 6 a.m. to 8 p.m. Saturday.

All D trains will stop at 135 St from 12:01 a.m. to 8 p.m. on Saturday.

F trains will not run between Coney Island-Stillwell Av and Church Av in either direction, with that change in effect from 11:45 p.m. Friday to 8 p.m. Saturday.

Manhattan-bound J trains will run express from Myrtle Av to Marcy Av from 3:45 a.m. to 8 p.m. on Saturday.

Coney Island-Stillwell Av bound Q trains will run express from Prospect Park to Kings Hwy from 5:45 a.m. to 8 p.m. Saturday.