From kdvr.com:
"A total lunar eclipse will be visible in Colorado starting in the evening of May 15 and going into the early morning hours of May 16.
The lunar eclipse will start at 7:57 pm on Sunday, May 15, and will end at 12:50 am on Monday, May 16. The maximum eclipse will happen at 10:11 pm on Sunday night.
The eclipse will last for 4 hours and 53 minutes.
A lunar eclipse happens when a full moon enters the darkest part of the Earth’s shadow directly opposite of the sun."