The Bellagio fountains go off every 30 minutes from 3:00 PM to 7:00 PM on weekdays and every 30 minutes from 12:00 PM to 7:00 PM on weekends and holidays. After 7:00 PM on all days, the fountain shows run every 15 minutes until midnight. The shows last about 3 to 5 minutes each, with different musical soundtracks for each performance.

Here is a summary of the Bellagio Fountain show frequency:

Day| Time Period| Frequency
---|---|---
Monday - Friday| 3:00 PM - 7:00 PM| Every 30 mins
| 7:00 PM - 12:00 AM| Every 15 mins
Saturday, Sunday, & Holidays| 12:00 PM - 7:00 PM| Every 30 mins
| 7:00 PM - 12:00 AM| Every 15 mins

This schedule can be subject to occasional changes due to weather or technical maintenance, but this is the general operating pattern for the Bellagio Fountain shows.