Well, Bob completed his Whitney day hike today. He climbed the Mountaineers Route, then descended the Main Trail route. Spot started at 5:13 AM on the Whitney Portal Road, and ended at 8:30 PM. He was at Whitney Portal at 5:45 AM and 8 PM.

Here's a log from Spot:
5:13 AM start up the road
5:43 start up the trail
6:20 Leave main trail, up the Mountaineers Route
7:30 Ebersbacher Ledges (or on snow in the valley)
7:45 Lower Boy Scout Lake
8:50 Head south leaving NF Lone Pine Cr.
10:40 Iceberg Lake
1:00 start the Final 400
1:31 Whitney Summit
3:00 Mt Muir side trip
3:28 Muir sumit
3:50 back on the Main Trail
4:15 JMT junction
4:30 Trail Crest
5:10 Trail Camp
6:20 past Outpost Camp/Bighorn Park
7:00 between Lone Pine Lk & Whitney Portal
7:50 Whitney Portal
8:30 down the road to his car.

Long day, Bob. Over 15 hours! Wish I'd been following along all day, but that's how it goes with work.