Can't add much to these replies.
Elsewhere on the Railroad, crews seldom communicate with the Section Dispatchers, and normally communicate through a tower or call "204," the Chief Train Dispatcher on the bridge.
Only on the Port Washington Branch are crews instructed to contact a specific section dispatcher, that being "Section A Train Dispatcher". As they must get permission to enter or leave the yard in Port Washington, due to the unreliable and non-interlocked nature of the electric yard switches, you'll hear constant reference to "Section A Dispatcher" on the radio.
And, yes, the Rules require Eastern Standard Time. In such a passenger-oriented operation, there would be confusion vs. public timetables if military time were used. There is one rather exceptionally stupid manager who insisted on using 24 hour time until I drew his attention to Rule 1.
Mr. C, I do suppose that one day 204 will leave the building, probably when Jamaica Central Control opens in the new place. But there are the usual budget issues that change that projection each time I ask.
Clemuel