Yup we did it in one day.... we left milpitas around 9am, arrived at the trail around 12nn and looked for a spot for lunch and had it by 12:30 noon.
we reached the dead end around 3:15/30pm hiked a couple of minutes to the peak.....enjoyed the scenery, then went down around 4:20/30.
The trip didn't seem to be that long.
Arrived home around 10:30 pm.