The UFO observations occurred during the early morning hours from 2:15 until 5:34 a.m. (CDT), for a total period of 3 hours and 19 minutes. Daylight Saving Time ended on Sunday, 27 October . Documentation originating at Wright-Patterson AFB, Dayton, Ohio, is Eastern Daylight Saving Time (EDT, and later EST). For documentation originating at Minot AFB, both CDT (later CST) and Greenwich Mean Time (GMT), or the equivalent letter designator Z (Zulu Time) are used. For Minot, ND, CDT offset from GMT is -5 hours. CST offset is -6 hours. “[3:44]” is a corrected time (for 3:34) based on our reconstruction of the B-52 flight track. See: “Discrepancies and Omissions in the Transcription of Recorded Conversations, 24 October 1968.”