Memberships are valid for one full year (365 days from the date of purchase) for free daytime admission on all operating days! Operating hours may vary by season.
Unscheduled closures will be announced as early as possible on Facebook and this website. If you are renewing a current membership, your new expiration date will be a year from your current expiration date or 365 days from today, whichever is later.
Philadelphia Zoo memberships can not be frozen or extended.