The hike to Squaw Peak is 3,000 feet in elevation and takes around 3 to 4 hours for the round trip of the hike to Squaw Peak from the trailhead parking lot.
Some people are able to make the hike to Squaw Peak and back within 60 minutes if they are very good at hiking.
While other people may take 2 hours to 3 hours to complete the entire hike up and down Squaw Peak.
If you've never hiked before then you should expect around 3 hours minimum to go up to Squaw Peak and then back from Squaw Peak to the trailhead parking lot.
Some good hikers have made it in an hour or an hour and a half while others need 3 hours to complete the Squaw Peak hike.