The libraries' spring term hours, effective February 6 through May 25, are as follows.
Administrative offices -- Monday-Friday, 9am-5pm; Saturday-Sunday, closed.
Aero & Astro -- Monday-Friday, 8:30am-6pm; Saturday, 11am-6pm; Sunday, 1-5pm.
Barker -- Monday-Thursday, 8:30am-11pm; Friday, 8:30am-7pm; Saturday, 11am-6pm; Sunday, 1-11pm.
Computerized Literature Search Service -- Monday-Friday, 10am-6pm; Saturday-Sunday, closed.
Dewey -- Monday-Thursday, 8:30am-11pm; Friday, 8:30am-7pm; Saturday, 11am-6pm; Sunday, 1-11pm.
Document Services -- Monday-Friday, 9am-5pm; Saturday-Sunday, closed.
Humanities -- Monday-Friday, 7am-midnight; Saturday, 8am- midnight; Sunday, 10am-midnight.
Institute Archives -- Monday-Friday, 11am-4:30pm; Saturday-Sunday, closed. (Archives morning hours available by appointment by calling x3-5136.)
Lewis Music -- Monday-Thursday, 8:30am-10pm; Friday, 8:30am-7pm; Saturday, 11am-6pm; Sunday, 1-10pm.
Lindgren -- Monday-Thursday, 9am-9pm; Friday, 9am-6pm; Saturday, 11am-6pm; Sunday, 1-9pm.
Reserve Book Room (Hayden) -- Monday-Thursday, 8:30am-11pm; Friday, 8:30am-7pm; Saturday, 11am-6pm; Sunday, 1-11pm.
RetroSpective Collection -- Monday-Friday, 9am-5pm; Saturday-Sunday, closed.
Rotch -- Monday-Thursday, 8:30am-11pm; Friday, 8:30am-7pm; Saturday, 11am-6pm; Sunday, 2-10pm.
Rotch Visual Collections -- Monday-Friday, 8:30am-6pm; Saturday-Sunday, closed.
Schering-Plough -- Monday- Thursday, 9am-7pm; Friday, 9am-6pm; Saturday, closed; Sunday, 2-5pm.
Science -- Monday-Friday, 7am-midnight; Saturday, 8am-midnight; Sunday, 10am-midnight.
Special schedules will be posted for holidays. Libraries' hours are also available on the web.
A version of this article appeared in MIT Tech Talk on February 7, 2001.