Not necessarily the first time zones... but if you're looking for primary sources on the logistics and mechanics of moving to a formal time-zone system, I highly recommend reading the newspapers from the week of November 18, 1883, that being the day the United States introduced its standard time zones.
Excerpt from "The Memphis Daily Appeal", Saturday, November 17, 1883:
Mr. D. W. C. Roland, general superintendent of transportation
of the Louisville and Nashville Railroad Company, has issued
a circular instructing "all hands" on that road that on Sunday,
November 18th, at 10 o'clock a.m., the standard time of all
divisions of this road will be changed from the present standard,
Louisville time, to the new standard, ninetieth meridian or
central time, which will be 18 minutes slower than the present
standard time. At precisely that hour, by the present standard
time, all trains and engines, including switch-engines, must come
to a standstill for 18 minutes, wherever they may be, and all
watches and clocks of all employees must be turned back 18 minutes,
which will be the new standard time. Other instructions are given
in the circular with regard to the manner of adopting the new
system of time not necessary here to print.
Excerpt from "The Evening Star" (Washington, D.C.), Saturday, November 17, 1883:
PUT THE CLOCK FORWARD.
The New Time Standard to Become Effective To-morrow.
What Will Be Done in Washington.
To-morrow the public at large not dependent for their supply of time
upon the "time ball" at the observatory will begin to regulate their
affairs upon the new time standard, giving Washington the time of the
75th meridian, which is 8 minutes and 12 seconds faster than the real
time of Washington, as registered by the daily transit of the sun over
our meridian. Towns that have never laid claim to a meridian will have
no embarrassment in effecting a change of time, but in this city, as the
meridian is recognized as a government institution, according to the recent
rulings, the actual Washington meridian time will continue to be the
"It won't disturb us a particle," said Superintendent Sharpe, of the Baltimore
and Potomac road, to a STAR reporter this morning; "as a matter of fact it
will not disturb any railroad. The time is easily enough arranged."
"Then the new time will go into effect 'on time' to-morrow," said
"Yes, promptly at twelve o'clock," said Mr. Sharpe.
"I should think that it would cause confusion at first," said the reporter.
"It will cause confusion may be for the public," said Mr. Sharpe, "but as a
matter of fact it will make very little difference on our road. We have always
run by Philadelphia time, and this new standard makes a difference of only one
minute and three seconds. Heretofore when we advertised a train to leave at
11 o'clock it left really at 11.07, according to Washington time."
The change on the Baltimore & Ohio road will go into effect at 2 o'clock
to-morrow morning, at which time the new schedule recently adopted will become
operative. It is thought that by making the change at 2 o'clock Sunday morning,
an hour when there are few trains running, there will be little confusion.
A bank official, talking to a STAR reporter to-day, said that there had been
no agreement as to the time to be employed in banking business. As a matter of
fact, it would make little difference, as a margin was always allowed to cover
any discrepancy in the clocks.
THE JEWELERS OF THE CITY,
who are the dispensers of time for the majority of people, will, as a rule,
keep both times, so that their patrons can take their choice. Arrangements have
been made so that the observatory will send both times to the jewelers.
Messrs. Galt, Brother & Co. will, on to-morrow, at noon, set the large clock
in front of their building to the time of the 75th meridian. Their regulator
inside, which is connected by wire with the U.S. observatory, will, as heretofore,
show the time of the meridian of Washington. Mr. M. W. Galt said to a STAR reporter
that he thought that the new time would necessarily prevail in the general course
of business, as the railroads and the post office would be regulated by that time.
As the new time is faster than the old, no one will be late, if they regulate their
movements by it.
Mr. Karr, the jeweler, stated to a STAR reporter that whatever time the Observatory
furnished would be supplied by the jewelers who had electric connection with the
Observatory. He is having a dial with two rows of figures made for the large clock in
his window, so that it will give both times. Some of the jewelers of the city are in
favor of holding a meeting to arrange for the adoption of one time or the other
throughout the city. The majority have decided to keep both times. Samuel Lewis' Sons
are the only ones who have positively declared in favor of the new time exclusively.
THE CITY BELLS.
There was some doubt at fire alarm headquarters this morning as to what time the bells
would announce to the public hereafter. As usual, on Sundays, the bells will not ring
at noon to-morrow, but will ring at 6 p.m., which will be the first time the bells will
tell the time after the new standard goes into effect. An official of the observatory
visited the office this afternoon and stated that the old Washington time would be rung
on the bells. This is in accordance with the instructions of the Secretary of the Navy.
The matter, it is stated, was made the subject of Cabinet consideration yesterday.
Circulars sent out from the observatory to-day explained the system of time signals,
and said that Washington time would be sent from the observatory. The difference between
Washington time and the 75th meridian time is stated in the circular.