Labs take place in 273 or 275 Soda. A cardkey is required for access to the labs and to Soda Hall after hours. If you are a Berkeley student, your student ID card serves as a keycard, but you must apply to have it enabled at 387 Soda or 391 Cory. If you are a concurrent enrollment student, you must pay $20 for a keycard ($5 nonrefundable fee + $15 refundable deposit).
Here's the University's official, uptodate listings for CS 61B (including lab enrollments).
Monday  Tuesday  Wednesday  Thursday  Friday  
9 am  Lab 11, 275 Soda (Varun). Lab 21, 273 Soda (Rohin). 
Lab 17, 275 Soda (Harvey). 
Dis 111, 75 Evans (Varun). 

10 am  Lab 11, continued. Lab 21, continued. 
Lab 27, 273 Soda (David). Lab 17, continued. 
Dis 121, 87 Evans (Rohin). 
Dis 117, 71 Evans (Harvey). 

11 am  Lab 12, 275 Soda (Raj). Lab 22, 273 Soda (Dan). 
Lab 18, 275 Soda (Andrew). Lab 27, continued. 
Dis 112, 85 Evans (Raj). 
Dis 118, 4 Evans (Andrew). Dis 127, B56 Hildebrand (David). 

12 pm  Lab 12, continued. Lab 22, continued. 
Lab 19, 273 Soda (David). Lab 18, continued. 
Dis 122, 85 Evans (Dan). 

1 pm  Lab 13, 275 Soda (Varun). Lab 23, 273 Soda (Kuldeep). 
Lab 19, continued.  Dis 123, 2 Evans (Kuldeep). 
Dis 119, 85 Evans (David). 

2 pm  Lecture, 1 Pimentel  Lab 13, continued. Lab 23, continued. 
Lecture, 1 Pimentel  Dis 113, 85 Evans (Varun). 
Lecture, 1 Pimentel 
3 pm  Lab 20, 275 Soda (Rohin). Lab 29, 273 Soda (Harvey). 
Lab 14, 275 Soda (Tony). Lab 24, 273 Soda (Razvan). 
Dis 120, 234 Dwinelle (Rohin). 
Dis 114, 87 Evans (Tony). 

4 pm  Lab 20, continued. Lab 29, continued. 
Lab 14, continued. Lab 24, continued. 
Dis 129, 405 Soda (Harvey). 
Dis 124, 83 Dwinelle (Razvan). 

5 pm  Lab 15, 275 Soda (Dan). Lab 25, 273 Soda (Razvan). 
Dis 115, 3113 Etcheverry (Dan). 

6 pm  Lab 15, continued. Lab 25, continued. 
Dis 125, 242 Dwinelle (Razvan). 

7 pm  Lab 16, 275 Soda (Andrew). Lab 26, 273 Soda (Raj). 
Dis 116, 243 Dwinelle (Andrew). Dis 126, 242 Dwinelle (Raj). 

8 pm  Lab 16, continued. Lab 26, continued. 
Teaching assistants:
Andrew Huan Zhai,
andrewzhai@berkeley.edu
Zhengyuan “Tony” Zhou,
zhengyuan@berkeley.edu
Razvan Carbunescu,
cs61btc@cory.eecs
David Qin Sun,
davidsun@cs.berkeley.edu
Kuldeep Shivati Kapade,
kuldeep@ischool.berkeley.edu
Harvey Feng,
h.feng@berkeley.edu
Daniel Wang,
cs61btg@cory.eecs
Rohin Shah,
rohinmshah@gmail.com
Varun Pai,
varunpai@berkeley.edu
Raj Patel,
cs61btj@cory.eecs