Heartland (live, 1983-03-06: Kid Jensen Show, BBC Radio, London, England)

The duration of the musical performance is ~3:46 (16:44...20:30).
On some bootlegs, e.g. Entertainment or Death and Kama Sutra the playback speed seems to be increased but the fade-out is extended and the last 10s are silent leading to durations of ~3:56.

SistersWiki lists this with a duration of ~3:31 and the track on the Radioland bootleg is even shorter with ~3:25.
These shorter tracks are currently linked to a separate recording.