By Suzanne Norquist
As we near
the annual time change in the United States, I find myself considering
international time zones and the Prime Meridian. How did this worldwide system
come about?
Before modern transportation and communication, everyone did their own thing. Clock towers in large cities synced up local times. Think of Big Ben in London, Zytglogge in Bern, Switzerland, and Independence Hall in Philadelphia. The rest of the world didn’t matter.
When trains started whisking people across large countries, time differences became a problem. The same was true of instantaneous communication over telegraph lines and, later, wireless devices. People in different parts of the world could converse instantly.
The variations
in recorded time posed problems for scientists as well. Astronomer Cleveland
Abbe struggled to reconcile observations of the northern lights because scholars
used their local times when recording data.
Engineers pushed for standardization related to longitude. But what longitude should be the base? Sailors’ maps used different prime meridians (aka zero degrees longitude) depending on their country of origin. This presented a problem with increased globalization.
In 1878, Canadian railroad engineer Sanford Flemming suggested dividing the globe into twenty-four zones, one for each hour. The next year, he published a paper estimating ship tonnage using various meridians. More than half of the ships used the Greenwich meridian as the base. He recommended adopting this as the standard. Although others liked the idea, it wasn’t accepted for years.
By 1883,
railroads in the United States established the time zones we still use today. The
convention was necessary for keeping timetables.
The real game
changer came in 1884 when U.S. President Chester Arthur hosted the International
Meridian Conference in Washington, D.C. Forty-one delegates from
twenty-five nations attended. They represented countries in Europe, South
America, Japan, and others. The fact that they made this long journey before
modern transportation highlights the importance of the issue.
This event established the Greenwich meridian, which passed through the Royal Observatory in Greenwich, London, as the reference for longitude and time. All countries agreed to adopt a universal day with midnight as the start of the twenty-four-hour clock.
At the same time, the International Date Line, which separates the two calendar days, was established on the opposite side of the globe at 180 degrees longitude. That line has been shifted in populated areas to prevent confusion caused by different dates in one location.
Even though
the delegates agreed, the resolutions were only suggestions, and countries were
slow to adopt them. Some, who tried to make the changes quickly, created so
much confusion that they returned to their original system.
Over time,
technology, particularly wireless communication, pushed most countries to
conform.
There are still a few holdouts. China has only one official time zone even though the international system suggests that it should have five. They had five time zones until 1949, when the communist party chairman put them all on Beijing time.
As fall
approaches, and I turn all my clocks back an hour, I’ll remember that this
action is only a small piece of the much larger picture. In the same way, the
next time I study a globe, I’ll note that the lines for longitude and latitude
are man-made conventions.
***
Love In Bloom 4-in-one collection
“A Song for Rose” by Suzanne Norquist
Can a disillusioned tenor convince an aspiring soprano that there
is more to music than fame?
“Holly & Ivy” by Mary Davis
At Christmastime, a young woman accompanies her impetuous younger
sister on her trip across the country to be a mail-order bride and loses her
heart to a gallant stranger.
“Periwinkle in the Park” by Kathleen E. Kovach
A female hiking guide, who is helping to commission a national
park, runs into conflict with a mountain man determined to keep the government
off his land.
“A Beauty in a Tansy”
Two adjacent store owners are drawn to each other, but their older
relatives provide obstacles to their ever becoming close.
Republished from Bouquet of Brides
Buy
links: https://books2read.com/u/bOOx8K
https://www.amazon.com/Love-Bloom-Mary-Davis/dp/B0FPLFYCXR/
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