Generally but not always. I believe there are churches in Kansas City and Las Vegas that have Masses at 2:30 on Saturday that fulfill the Sunday obligation.
The 2:30 at the Cathedral in Las Vegas
used to be labeled as meeting the Sunday obligation “for tourists only.” At the time, Mass was every hour on the hour in the Cathedral, and on the half hour in the hall.
Note that the Cathedral is on the strip. It was built with casino money, even–the owners offered to build a church there if the then Diocese of Reno would provide an early Mass (4:30 A.M., iirc) on Sunday for workers coming off shift.
Since then, it has become first a co-cathedral, and now a cathedral in its own right. Additionally, a shrine has been built at the other end of the strip.
But I just looked, and the 2:30 Sunday Mass on Saturday is still there, but no longer with the tourists label . . . .
(back in the day, the priest also mentioned not to be hesitant about throwing casino chips in–he made a run every Monday, and claimed to be the only person who left the casino with more money than when he entered


He also mentioned that it was about 10% of the collection!)
Given that it’s the cathedral itself in Las Vegas . . .
I’m assuming the Bishops of those dioceses have approved these times. Not sure how that squares with the 4:00 p.m. limit.
We’re running a 2:30 Saturday afternoon Mass that weekend tourists in Sin City attend in droves. I think someone would have to have his head stuck in an anatomically improbable location to seriously complain about this . . .
hawk