Instead of a night at the museum, it's a rare morning at the zoo without the crowds and queues.

Taronga Zoo is opening its doors an hour early at 8.30am on Saturday for guests on the autism spectrum and their family or friends.

Baby meerkats at Taronga Zoo. Credit:Paul Fahy

"This is a great opportunity to enjoy the peace and quiet of the zoo before it opens to the general public," Taronga's manager of guest experience operations Stephen Williams said ahead of the inaugural Access Taronga day.

Similar mornings are expected to be held throughout the year, and will include early access to zoo exhibits, animal meet and greets and the Sky Safari Cable Car.