Calender for Reference, updated 29 JAN 2019 8:30AM (EST).

First work day after start of Shutdown: morning of 24 DEC 2018.

End of 30 day interval (work days minus MLK Day): morning of 1 FEB 2019.

Then, after the weekend of 2-3 FEB, the first day after the 30 day interval: morning of 4 FEB 2019.

Latest invite for SOTU: 5 FEB 2019.

What might be the significance of 4 FEB 2019?