The can seem to run non stop in a small way. in other words there are a few movements that the fountains will go through on a recurring basis. However the shows themselves run every 20 or 30 minutes during the day and a little more frequently at night. I think it's every 15 minutes after dark. The show itself is the length of a single song. Exact length varies but I would say no more than three to five minutes. I did hear that the final show which happens at midnight is a little more spectacular than the typical quarter hourly shows.

Every one hour