AC, you are 100% incorrect. The DXB layover is 24 hours for the Delta pilots. Wrong again about age 60. Foreign pilots WERE flying into the US before the U.S. age limit was raised. BTW, the Delta layover used to be 72, then 54, then 48, and now 24. The pilots complained that they didn't want to spend that much down time away from home. It's been 24 for at least three years or so. As you said, US pilots have to fly under FAA regs no matter where they fly. Well sadly, same for us having to fly under GCAA regs wherever we fly.