FSA site maintenance until Jan 20th?!

Just tried to login and see this message:

Planned Maintenance You are unable to log in, create an account, or access certain site functionality at this time. Our site maintenance is scheduled to end at approximately 11:00 a.m. Eastern time on MONDAY JANUARY 20th. Thank you for your patience.

The site will be down for that long? And reopen on Inauguration Day, an hour before the changeover?