Well, since there isn't any time for an extra leg between yesterday's Phnom Penh leg (25 Jun) and today's sighting (26 Jun), I'm thinking our 2 teams in Suvarnabhumi are on:
PG 934 from Phnom Penh to Bangkok, 1530-1640
Leading to a sighting at 5pm, Bangkok time. Nothing else from Phnom Penh fits.
No way in hell they'd finish at 2-3am, so we've got a somewhat extended Pit Stop in Cambodia. Looks like Phil bailed Cambodia yesterday afternoon/evening, filming the next leg's stand-ups today. Teams get in late, and start racing for real tomorrow. Does that narrow our range?