Time Zones

[DWalt]

When I was growing up, Northern Ohio observed DST, Southern Ohio did not. No idea why. As a result most businesses in Southern Ohio just started and ended their workday an hour earlier to stay in step with Northern Ohio. That changed later as the whole state went DST. I think that was in the early 1960s.

Before the growth of railroads, the entire USA, and indeed most of the world, operated on local solar time. There were no time zones.

It is impossible to overstate the historical and scientific significance of establishing the prime meridian at Greenwich. There is nothing special about that specific location, but rather it is just because it exists.

 

[THE PILGRIM]

The 24 Time Zones are alphabetical going West of Greenwich.
Drop out I and O to get 24.
Go round the ball back to Greenwich.
That assigns them Z.
Zulu Time!
Don Williams is living on Tulsa Time.
I'm living on Boulder time, National Atomic Clock.
NIST-F1 - Wikipedia

 

[Rustyt1953]

 

[Tom S.]

Does Anybody Really Know What Time It Is?

25 or 6 to 4.

 

[lihpster]

25 or 6 to 4.

Saturday. In the park.

 

[cmj8591]

......Does anybody really care?

We've all got time enough to cry.

 

[johngross]

PILGRIM:

Yeah, I remember my wife and I going to Page, AZ. I noticed each time I looked at my cell phone it showed a different time. I asked the guide what was going on and he tried to explain it to me but it just added more confusion.

Here's a couple of pics we took. Exactly where you were at!

Was in Page, AZ. A small town on deeded land in the middle of Navajo Reservation.
AZ don't do DST. Navajo Nation do do DST.
Not sure what time is on my phone.
Ask the Motel Desk clerk who laughs.
Want to go to the Slot Canyons just outside of town on the Rez.
Want to go late, low sun.
Before they close!
Figured it out!

 

[WR Moore]

Besides GMT, there's apparently at least two different common acronyms for Greenwich Time. UTC has been mentioned, the actual computer at work had UMT by the time read out. While I realized it was Zulu time, I asked, was told it stood for Universal Mean Time. OTOH, that's the word of a computer nerd.

 

[johngross]

Beat this one.

The wife and I visited Fort Jefferson in the Dry Tortugas several years ago. We left via seaplane from Key West, 45 minute flight. The Dry Tortugas are in a different time zone, one hour behind.
We left the Keyes at 8:00 AM and arrived 45 minutes later at 7:45 AM.

 

[yaktamer]

I'm just glad that I no longer measure my life in six-minute increments.

 

[THE PILGRIM]

If all those Time Zones weren't confusing enough, when you get 12 Zones West of Greenwich out in the middle of the Pacific, you change days.
International Dateline.
The US Territory West of there is Guam.
So they are - "Where America's Day Begins."
Because of its western location from the International Date Line, Guam is the first to experience the new day in the United States; hence Guam is "Where America's Day begins." Its capital city is Hagatña (formerly Agana).
Self Promotion Rule is - Go with what you got.
That don't fully explain why Deming, NM has Duck Races.
But that another Thread!

 

[Nevada Ed]

I spent some time on Guam.

Very interesting Island to visit and get to know it's ins and outs.

A must for everyone is getting drenched in a rain storm and after it stops,
being dry 24 minutes later, and don't forget your fins and snorkel.

 

[Tom S.]

Beat this one.

The wife and I visited Fort Jefferson in the Dry Tortugas several years ago. We left via seaplane from Key West, 45 minute flight. The Dry Tortugas are in a different time zone, one hour behind.
We left the Keyes at 8:00 AM and arrived 45 minutes later at 7:45 AM.

I once put instant coffee in a microwave and went back in time.

 

[DWalt]

This is a very entertaining and educational British movie (also 3 hours long) on You Tube about the concept of longitude and the invention of the marine chronometer by John Harrison in the 18th Century. It changed the world forever. [ame]https://m.youtube.com/watch?v=LHvt48S9l4w&pp=ygUPTG9uZ2l0dWRlIG1vdmll[/ame]

 

[Rustyt1953]

I saw Longitude many years ago. A tale well told, well cast, well directed and well filmed.

 

[DWalt]

In the mid-18th Century, telling time at sea precisely enough to allow reliable navigation was then a technological feat comparable to landing a man on the moon in the 1960s. And it was a single unschooled British clockmaker and carpenter who was able to do it. About all he got for his effort was to get screwed over royally by his majesty's government. BTW, that clockmaker is also credited with the invention of the roller bearing.

 

[S42N8]

I think that that UTC or CUT should be abbreviated CTU for Coordinated Time, Universal. This way the letters are in alphabetical order.

Of course, they already were with GMT.

Zulu time? De mortuis, nil nisi bonum, as the Romans used to say.

Another sufferer of CDO: Compulsive Disorder, Obsessive. In alphabetical order…as they should be.

 

[Kiwi cop]

When we visit America

We leave Kiwiland at 7:30 pm, fly 14 hours and arrive in Houston about 4pm the same day we leave NZ.

I know that US Central time is 18 hours behind NZ, when both counties are on DST (mid Sep to early Nov) During USDST the US is 17 hours behind us, and during most of NZDST it is 19 hours.

Calculating the time differences the other way it is 5 hours ahead, plus another 12 hours to the next day.

In 2018 when we left Stephenville to drive to El Paso the drive was shown as 7 1/2 hours, but our arrival time was only 6 1/2 hours later due to crossing from Central to Mountain time. That was when I learnt time zones do not follow state borders.

The next day driving to Tombstone the 4 1/2 hour drive had us arriving after 5 1/2 hours as Arizona does not do DST.

And driving east again we had several 23 hour days from Mountain to Central, and then to Eastern time zones, and a 25 hour day crossing from Arizona into New Mexico.

Luckily, I knew that if we called Ryan at home between 4 pm and 6 pm US time we would get him late morning back home.

Are you confused yet?

 

[s&wchad]

Beat this one.

The wife and I visited Fort Jefferson in the Dry Tortugas several years ago...
We left the Keyes at 8:00 AM and arrived 45 minutes later at 7:45 AM.

I drove to Indiana on a business trip decades ago. The hotel I stayed at was on Eastern Standard time. The vendor was about a 10 minute drive away and was on Central Time. I left the hotel at 9:45am and arrived early for my 9 o'clock appointment. Unfortunately, the drive back to the motel cost me an hour and fifteen minutes!

 

[dockmurgw]

The country runs on Eastern time...the rest of you just struggle to keep up with us.