As of my last update, I am unable to find specific information about operating hours for this particular Chase Bank branch. Operating hours can change depending on location and day of the week, so I would recommend calling the Sunnyvale branch directly or checking their website or mobile app for the most up-to-date information. Here is a link to the Chase bank locator page where you can find contact information for the specific branch: https://www.chase.com/branch/california/sunnyvale