St. Louis Mercantile Library

Mercantile Library Hours


Rare Book and Manuscript Reading Room Hours

In observance of security procedures, certain services may not be available shortly before the daily closing time.

Monday   12:30 p.m. - 4:00 p.m.
Tuesday 9:00 a.m. - 4:00 p.m.*
Wednesday 9:00 a.m. - 4:00 p.m.*
Thursday 9:00 a.m. - 4:00 p.m.*
Saturday CLOSED

*The reading room closes for lunch from 12:00 p.m. to 1:00 p.m. on Tuesdays, Wednesdays, and Thursdays.

Thomas Jefferson Library Hours - may vary according to semester

The St. Louis Mercantile Library is located in the same building as the Thomas Jefferson Library at the University of Missouri-St. Louis.  Exhibitions can be viewed during normal Thomas Jefferson Library hours; all exhibitions are free and open to the public. 

The following hours are in effect from Saturday, August 9, 2014 to Sunday, August 24, 2014:

Monday 8:00 a.m. - 5:00 p.m.
Tuesday 8:00 a.m. - 5:00 p.m.
Wednesday 8:00 a.m. - 5:00 p.m.
Thursday 8:00 a.m. - 5:00 p.m.
Friday 8:00 a.m. - 5:00 p.m.
Saturday CLOSED
CLOSED Sunday, August 31 and Monday, September 1 (Labor Day Holiday)
For Updates Go To:

Questions about hours and holiday closings - Please call
(314) 516-7240 or (314) 516-7247