Hm, yes, I can see how it might be a misinterpretation. Other officers testified that surveillance started just after 3pm. What is the significance of Tselepakis specifically stating 3:55pm? What time to do you think Hamilton and Tselepakis actually visited the hangar? I would really like the timeline to be as accurate as possible.
My notes show Tselpakis saying they arrived at 2:28, not clear if it's the airport or the hangar. And they did have some problems finding the hangar.
Waterloo surveillance takes over at 3:55 after T and H have sat in their vehicle waiting for them for a while.
As to when all the Jennings stuff happened, it's impossible to know based on the info we have as he didn't give any times.