Okay, I misunderstood the OP. I thought you were asking for movies that were within a 2:1 ratio of real time (so that a 1:1 ratio would qualify). But you’re looking for movies that are close to real time but not quite there, correct?
Here’s one: The Raid.
Maybe he is looking for movies that are near real time just by happenstance, as opposed to those that try for true real time, which sometimes comes across as gimmicky.
Curious, since the film is intended to represent one long continuous, uninterrupted take, so it’d be interesting to see where the film conflates time in that way. Is this based on clocks on the wall or other references to time in the story? If so, then it definitely does qualify (apologies) but may be unique for a film that at once emulates “real time” but also denies it.
Yes, exactly. 
Die Hard?
Am I the only person who thinks Brandon and Philip are a gay couple?
(I almost typed that as “Terrance and Philip” :D)
“Death and the Maiden” was in real time, I’m pretty sure.
That’s the one I was thinking of. Good movie, extremely violent. It’s pretty much in real time except for some bits at the beginning.
88 Minutes?
Would Airplane! qualify? LA to Chicago is about a 4 hour flight, and the movie starts maybe 1 hour before takeoff, am I right on that?
Die Hard? I think that ones pretty close.
Dr. Strangelove is 94 minutes long and covers about 2 hours (from what I’ve been able to find the bombers are maintained in the air 2 hours from their targets).
**Fail-Safe **probably has a similar time frame.
I think Dredd would qualify too: if the action didn’t take place over a couple of hours, it wasn’t much longer.
No, I think even in the raid part there was an element of time compression. They showed the “exciting” parts of the raid, like the chases and the fighting but cut out the routine stuff like regular movement. Sort of like if you took a football game and cut out all the parts when the clock was stopped. So we saw what would have been a three hour battle compressed down to around ninety minutes of viewing.
My impression anyway. I could be wrong.
The Anniversary Party, maybe?
It’s a Mad, Mad, Mad World.
I don’t know if it fits the OP’s outline perfectly, but I never pass up an opportunity to sing the praises of “11:14”. The movie is told as a series of 5 individual scenes that all unfold more or less in real time around a specific time on a given night (11:14pm). It’s not until you see the last scene that all the individual stories weave together. I don’t know why it didn’t get more praise, it was a highly enjoyable and unique little flick.
Speaking of parties, there was the old Peter Sellers movie, The Party, which unfolded essentially in real time during an evening party at a Hollywood producer’s house.
I’ll tentatively throw in Night on Earth, which covers the same roughly twenty-minute period in five different locations. The events in each segment are pretty close to real time but not precisely. At the end of each segment we see the set of clocks showing the time in each location going back.
Obviously not real-time, but the Steve McQueen flick Bullitt take place over a fairly clearly defined weekend.