Grimes Engineering Center building hours
Summer 2025
| Monday – Friday | 7 am – 6 pm |
| Saturday & Sundays | Closed |
Session D (July 25 – Aug 15) hours
| Monday – Thursday | 9 am – 6 pm |
| Friday | 9 am – 5pm |
Fall 2025
| Monday – Friday | 7 am – 11 pm* |
| Saturday | Closed |
| Sunday | 1 pm – 11pm |
*Cal 1 Card key required for access after 7 p.m.
Event rentals are available during building hours, Monday through Friday. Requests for weekends or events outside of building hours will be considered on a case-by-case basis. Contact coe-facilities@berkeley.edu.

Use is not permitted during holidays and campus closures. For more information, check Berkeley’s academic calendar.
Building operating hours, reservations process and use updates to policies will be readily available and updated on the Berkeley Engineering website, ensuring you are always well-informed.
Kresge Library access & hours
For library hours, refer to the the Kresge Library website for the most up to date information.
Please confirm with the individual programs headquartered in the Grimes Engineering Center and Kresge Library for details regarding their operating hours.