United's Military Pilot Program page has more information. Here, in the FAQ, they state:
"Certificates and Ratings: Does United use a conversion factor for military flying hours?
Yes, United converts military hours to the equivalent number of hours in our FAA Part 121
operation. This conversion happens in our system and is visible to our pilot-hiring staff. Enter
military flight hours as they appear in your logbook / flying records."
https://careers.united.com/us/en/uni...-pilot-program
https://cdn.phenompeople.com/CareerC...5909784405.pdf
So, they do their own conversions behind the scenes to calculate your hours. But whether that's 0.1, 0.2, 0.3 per sortie, or 1.3 of military flight time is less clear. Regardless of the method used, airlines clearly convert military time to civilian time that helps transitioning military pilots reach the required minimums.
Will be interested to see if anyone else can contribute. I'll report back with what the FSDO says, as well as any recruiters I can get a hold of.