Bar graph showing average hours per day in session of the US Congress from 1981 to 2018. 2017-18: Senate 5.7, House 4.1 2015-16: Senate 5.6, House 5 The chart goes back to 1981-82, with all sessions showing similar hours. The most hours per day in session for the Senate was 1993-94 at 8.6. The most hours per day in session for the House was 1995-96 at 8.4.
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