Thanksgiving — this year on Thursday, Nov. 27 — is a day of widespread closures. Government offices, banks, the Postal Service and most stores and other businesses are closed; supermarkets are usually open, but with reduced hours.

The following day is more of a mixed bag.

CLOSED on Friday, Nov. 28:

— State offices. It’s an official California holiday.

— Public schools.

— Local offices. Counties and cities generally follow the state’s lead and close for the day. This includes most public libraries.

OPEN:

— Banks. Hours may be shortened.

— U.S. Postal Service. Normal delivery, and post offices will be open.

— Other federal government agencies. It is not a federal holiday.

— Stock markets. NYSE and Nasdaq will close early, at 10 a.m. Pacific time.

— Most retailers. Some will open very early — including Target and Best Buy at 6 a.m., Kohl’s at 5 a.m.

— BART will run on its regular weekday schedule. Caltrain will follow a modified schedule.