Missing Persons - Walking In L.A.

I'm baffled by Missing Persons' "Walking In L.A."

I have a 4-minute version that is (I assume) the album length.

I also have a version from Can't Get Enough - New Wave Hits Of The 80s which cuts out part of the instrumental near the one minute mark and then takes out some of the "nobody's walkin, walkin, walkin" at the end to get to a length of 3:37.

This single says on the label that it runs 3:30, but I have no way to check that.

The mix of the 4-minute and 3:37 versions are identical, it is a simple edit. The video version is the 4-minute version.

Does anybody know the real length of the single version, especially the DJ promo single, and if it was a simple edit of the LP version or a different mix?

Gene, both sides of my promo 45 are exactly the same: stereo, a listed time
of (3:30), an actual time of (3:37) (which exactly matches your "New Wave
HIts Of The 80's" CD timing), and deadwax info of "S45-B-5212-98216A-
Z1", and then a faint "#2" at the end.

Yes, the stock 45 also runs an actual 3:37.