10th to 19th Congresses (1807–1827)

Sunday sessions are marked in bold.

Congress and Year1st Session2nd session 3rd Session*
10th (1807-1809)November 21, 1807December 3, 1808 
 December 19, 1807December 10, 1808 
 January 2, 1808December 17, 1808 
 January 9, 1808December 31, 1808 
 January 30, 1808January 7, 1809 
 February 6, 1808January 14, 1809 
 February 20, 1808January 28, 1809 
 February 27, 1808February 4, 1809 
 March 5, 1808February 18, 1809 
 March 12, 1808February 25, 1809 
 March 19, 1808  
 April 2, 1808  
 April 9, 1808  
 April 16, 1808  
 April 23, 1808  
11th (1809-1811)May 27, 1809December 30, 1809December 29, 1810
 June 17, 1809January 6, 1810January 5, 1811
 June 24, 1809January 20, 1810January 12, 1811
  January 27, 1810January 19, 1811
  February 3, 1810January 26, 1811
  March 17, 1810February 2, 1811
  March 24, 1810February 9, 1811
  March 31, 1810February 16, 1811
  April 7, 1810 February 23, 1811
  April 14, 1810March 2, 1811
  April 21, 1810 
  April 28, 1810 
12th (1811-1813)December 7, 1811November 21, 1812 
 December 21, 1811December 5, 1812 
 January 4, 1812January 2, 1813 
 January 11, 1812January 9, 1813 
 January 18, 1812January 23, 1813 
 January 25, 1812January 30, 1813  
 February 1, 1812February 6, 1813 
 April 4, 1812February 13, 1813 
 April 11, 1812February 20, 1813 
 April 25, 1812February 27, 1813 
 May 16, 1812  
 June 13, 1812  
 June 20, 1812  
 June 27, 1812  
 July 4, 1812  
13th (1813-1815) June 12, 1813 December 11, 1813 October 15, 1814
  June 19, 1813 January 15, 1814 October 22, 1814
  June 26, 1813 January 22, 1814 October 29, 1814
  July 3, 1813 February 5, 1814 November 5, 1814
  July 10, 1813 February 12, 1814 November 12, 1814
  July 17, 1813 February 19, 1814 November 19, 1814
  July 24, 1813 February 26, 1814 November 26, 1814
  July 31, 1813 March 5, 1814 December 3, 1814
   March 12, 1814 December 10, 1814
   March 19, 1814 December 17, 1814
   March 26, 1814 December 24, 1814
   April 2, 1814 December 31, 1814
   April 9, 1814 January 7, 1815
   April 16, 1814 January 14, 1815
    January 21, 1815 
    January 28, 1815
    February 4, 1815
    February 11, 1815
    February 18, 1815
    February 25, 1815
14th (1815-1817) January 13, 1816 January 25, 1817  
  January 20, 1816 February 1, 1817  
  January 27, 1816 February 8, 1817  
  February 3, 1816 February 15, 1817  
  February 10, 1816 February 22, 1817  
  February 17, 1816 March 1, 1817  
  February 24, 1816   
  March 2, 1816   
  March 9, 1816   
  March 16, 1816   
  March 23, 1816   
  March 30, 1816   
  April 6, 1816   
  April 13, 1816   
  April 27, 1816   
15th (1817-1819) January 10, 1818 January 16, 1819  
  February 28, 1818 January 23, 1819  
  March 7, 1818 January 30, 1819  
  March 14, 1818 February 6, 1819 
  March 21, 1818 February 13, 1819  
  March 28, 1818 February 20, 1819  
  April 4, 1818 February 27, 1819  
  April 11, 1818  
  April 18, 1818   
16th (1819-1821) January 22, 1820December 9, 1820  
  February 5, 1820 January 6, 1821  
 February 12, 1820 January 13, 1821  
  February 19, 1820 January 20, 1821  
  February 26, 1820 February 3, 1821  
  March 11, 1820 February 10, 1821  
  March 18, 1820 February 17, 1821  
  March 25, 1820 February 24, 1821  
  April 1, 1820 March 3, 1821  
  April 8, 1820   
  April 15, 1820   
  April 22, 1820   
  April 29, 1820  
  May 6, 1820   
  May 13, 1820   
17th (1821-1823) December 15, 1821 January 25, 1823  
  February 2, 1822 February 8, 1823  
  February 16, 1822 February 15, 1823  
  February 23, 1822 February 22, 1823  
  March 2, 1822 March 1, 1823 
  March 9, 1822   
  March 23, 1822   
  March 30, 1822   
  April 6, 1822   
  April 13, 1822   
  April 20, 1822   
  April 27, 1822  
  May 4, 1822   
18th (1823-1825) January 24, 1824 February 5, 1825  
  February 28, 1824 February 19, 1825  
  March 6, 1824 February 26, 1825  
  March 13, 1824   
  March 20, 1824   
  March 27, 1824   
  April 3, 1824   
  April 10, 1824   
  April 24, 1824   
  May 1, 1824   
  May 8, 1824   
  May 15, 1824   
  May 22, 1824   
19th (1825-1827) January 21, 1826 January 6, 1827  
  March 4, 1826 January 13, 1827  
  March 11, 1826 January 20, 1827  
  March 18, 1826 January 27, 1827  
  March 25, 1826 February 3, 1827  
  April 1, 1826 February 10, 1827  
  April 8, 1826 February 17, 1827  
  April 15, 1826 February 24, 1827  
  April 22, 1826 March 3, 1827  
  April 29, 1826   
  May 6, 1826   
  May 13, 1826   
  May 20, 1826   

* Congressional leaders discontinued the use of third sessions by the end of the 1930s. The ratification of the 20th Amendment in 1933, provided for Congress to assemble on or about the third day of January rather than the traditional March start date. Third sessions, which generally had run from December to March, no longer were necessary.