With 114 million cards in circulation, American Express is a significant credit card corporation. It also owns American Express National Bank, Member FDIC, an online bank that offers high-yield savings accounts and CDs.

Because American Express National Bank, Member FDIC is an online bank with no branch locations, it doesn’t keep normal hours the way traditional banks do. You can access your account online at any time, regardless of the day.

Technically, no branches of American Express National Bank, Member FDIC are open on weekends — or any other day — because the company doesn’t operate any branches.

Because it’s an online bank, American Express National Bank, Member FDIC doesn’t close on the federal holidays that other banks observe. But if you’re interested in knowing which federal holidays the U.S. Office of Personnel Management observes, here’s the 2022 schedule:

– New Year’s Day: Jan. 1 – Martin Luther King Jr. Day: Jan. 17 – Presidents Day: Feb. 21 – Memorial Day: May 30 – Juneteenth National Independence Day: June 19

– Independence Day: July 4 – Labor Day: Sept. 5 – Columbus Day: Oct. 10 – Veterans Day: Nov. 11 – Thanksgiving Day: Nov. 24 – Christmas Day: Dec. 25

American Express working days are Monday through Friday, and transfers made after 7 p.m. Eastern time are processed the next business day, barring holidays.

– Phone number: 1-800-419-2122 – Mobile app: Click on the Chat icon in the American Express App to access customer support. – Mail: For general inquiries, write to:American Express P.O. Box 981535 El Paso, TX  79998-1535