Bowles does not say that the dispatcher's clocks could differ by two minutes.
Bowles;
A master clock on the telephone room wall was connected to the City Hall system. This clock reported "official" time. Within the dispatcher's office there were numerous other time giving and time recording devices, both in the telephone room and in the radio room. Telephone operators and radio operators were furnished "Simplex" clocks. Because the hands often worked loose, they indicated the incorrect time. However, their purpose was to stamp the time, day and date on incoming calls. While they were reliable at this, they were not synchronized as stated in the Committee report. Therefore, it was not uncommon for the time stamped on calls to be a minute to two ahead or behind the "official" time shown on the master clock.
He said that the dispatcher clocks were kept to within a minute of each other.
Misrepresent much?
Bowles;
Accordingly, at "exactly" 10:10, various clocks could be stamping from 10:08 to 10:12, for example. When clocks were as much as a minute or so out of synchronization it was normal procedure to make the needed adjustments. During busy periods this was not readily done.
In addition to the times stamped on calls by telephone operators, the radio operators stamped the "time" as calls were dispatched, and the "time" that officers completed an assignment and returned to service. Radio operators were also furnished with 12-hour digital clocks to facilitate their time references when they were not using call sheets containing stamped time. These digital clocks were not synchronized with any time standard. Therefore, the time "actual" and time "broadcast" could easily be a minute or so apart.
Next, consideration should be given to the methods of individual radio operators. A given operator at a given time might broadcast "time" a little early in one event then a little late the next. Accordingly, a call initiated at, say, 10:10 might be stamped at 10:13 by the dispatcher, only to have intervening radio traffic delay his broadcast. He might go ahead and announce the dispatch time as 10:13 and the digital clock then showed 10:14. Time intervals of less than one minute were never used.
And, since I'm just talking about channel one time, the City Hall clock (and what you call "real time") doesn't even begin to come into play.
You wish, it would only make your speculation "analysis" even more flawed and less valid.
You seem to have missed or ignored the bottom line completely. With dispatcher's clocks out of sychronization, not matching the "official time" of the master clock, which in turn did not match real time and with the two dispatchers not always calling out the correct time, the likelyhood of a time stamp call on the audio recording being 100% correct is minimal. Yet your entire "analysis" is rather foolishly completely based on that time stamp being 100% correct.
There is no way to connect "police time" with "real time." - J.C. Bowles
It seems you are the one who needs to try again.