The Pinnacle Peak trail is a 1.75 mile trail which takes an hour roughly to hike one way of the Pinnacle Peak trail.
And then it takes around roughly another hour to hike back down the Pinnacle Peak trail.
So expect around 2 hours minimum to hike the Pinnacle Peak trail to and from for both going and returning.
Of course it may take you a bit longer than an hour to get to the end of the Pinnacle Peak trail depending on how often you stop and take breaks to sight see and rest.
So it might take you 1 hour and 15 minutes to 1 hour and 30 minutes to actually finish the hike to the end of the Pinnacle Peak trail and then another 1 hour and 15 minutes to 1 hour and 30 minutes to hike back down the trail.
So maybe 2 hours and 15 minutes to 2 hours and 30 minutes to hike up and back the Pinnacle Peak trail.