When the sun goes down, your wild adventure is only just beginning! The San Diego Zoo is open from 9 a.m. to 9 p.m. all summer long, and a whole new world wakes up after dark during Nighttime Zoo. Activities and entertainment begin at 4 p.m. daily.*Join us for live music, spectacular entertainment, one-of-a-kind moments with your favorite wildlife, and more unforgettable fun that’s perfect for the whole family.For additional information on Nighttime Zoo, see the Seasonal Events section of the San Diego Zoo's FAQ page.*No Nighttime Zoo entertainment is scheduled on Saturday, June 15, or Thursday, August 22. On August 22, San Diego Zoo hours are 9 a.m. to 6 p.m. San Diego Zoo on Facebook / Instagram