Independence Day, July 4, 9am – 5pm. The Montgomery Zoo and Mann Museum will be open July 4 for this national holiday. Hours: 9am – 5pm, with last admission/entry at 4pm. For more information, please visit montgomeryzoo.com or call (334) 625-4905. Montgomery Zoo / Mann Museum, 2301 Coliseum Parkway, Montgomery, AL 36110