What is 500 est time in AZ?

Arizona operates on Mountain Standard Time (MST) and does not observe Daylight Saving Time. Therefore, when it is 5:00 PM Eastern Standard Time (EST), it is 3:00 PM in Arizona. However, if Daylight Saving Time is in effect in the Eastern Time Zone, then 5:00 PM EST would correspond to 2:00 PM in Arizona.