Complex sentence: It is a common misonception that they reached almost exactly on time, late by about two and a half minutes, for which Lord Lovat apologised to Lieutenant Colonel Geoffrey Pine-Coffin (Yorks. L. I.), of 7th Parachute Battalion.
Split into simpler sentences: It is a common misonception that they reached almost exactly on time, late by only two and a half minutes. Upon making the rendezvous, Lord Lovat apologised to Lieutenant Colonel Geoffrey Pine-Coffin (Yorks. L. I.), of 7th Parachute Battalion.