3:34 [3:44] is the beginning of the communications between Minot, Radar Approach Control (RAPCON) and the B-52 pilots, when the B-52 is on low-approach over the runway (Transcription, 0834). 4:02 is when the UFO disappeared from the B-52 radarscope and the B-52 radio transmission resumed (Transcription, 0902). 4:06:51 (9:06:51Z) is the B-52 radarscope chronometer time of the last radarscope photograph (when the UFO disappeared). Regarding discrepancies in the transcription, and the B-52 onboard time, see: “Discrepancies and Omissions in the Transcription of Recorded Conversations, 24 October 1968.”