All-Night Sessions of the Senate (1915-Present)
Dates of Sessions of Congress
Days in Session (Congress.gov)
Joint Sessions & Meetings of Congress
Lame Duck Sessions (1940-Present)
Saturday Sessions of the Senate (1968-Present)
Sunday Sessions of the Senate (1861-Present)
Senate Sessions while Presidents Lay in State
Years of the 1st through 117th Congresses (1789-2022)