When is it necessary to use GMT time

Thread: When is it necessary to use GMT time

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  1. #1
    Banned picard's Avatar
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    When is it necessary to use GMT time

    When is it necessary to use GMT time? I know the meaning of GMT time. Are millitary personel, pilots, and shipping businesses the only people use GMT time?

  2. #2
    Member Dave E's Avatar
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    Re: When is it necessary to use GMT time

    Quote Originally Posted by picard
    When is it necessary to use GMT time? I know the meaning of GMT time. Are millitary personel, pilots, and shipping businesses the only people use GMT time?
    Well for those of us in the UK it's our time apart from summer...

    On a more serious note, it can be handy when doing any business internationally. If you don't know a particular timezone or are dealing with several, it's easy to find out quickly where it stands relative to GMT, so therefore knowing GMT will be useful.
    Dave E

    Skating away on the thin ice of a new day

  3. #3

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    Re: When is it necessary to use GMT time

    Isn't a GMT watch simply one with an extra hand showing a different hour? I have a GMT model and I find it useful to set the GMT hand to my home time whilst altering the normal hour hand to local time.

    The fact that you have a GMT watch doesn't mean that you have to display GMT time! Even the UK where Greenwich is located doesn't use GMT time for half of the year, being one hour ahead for all of the summer.

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  5. #4
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    Re: When is it necessary to use GMT time

    You're right Frank, it's basically a secondary timezone indicator these days.
    Greetings from that Island they call Long!

  6. #5
    Banned picard's Avatar
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    Re: When is it necessary to use GMT time

    Can a user use the GMT feature to set a 2nd time zone instead of GMT time?

  7. #6
    stuffler,mike
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    Re: When is it necessary to use GMT time

    Quote Originally Posted by picard
    Can a user use the GMT feature to set a 2nd time zone instead of GMT time?
    :-S :-S Read what Frank wrote and you´ll know..............or read here: http://fejack.net/misc/gmt24/gmt24.htm
    Last edited by stuffler,mike; July 17th, 2006 at 22:35.

  8. #7

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    Re: When is it necessary to use GMT time

    GMT time is used to also calculate longitude discovered by John Harrison. Mr. Harrison invented and built a clock that would keep time on a sailing ship. It was called "The Grasshopper". He made three models of this clock then ended up with a large pocket watch looking clock. All this from a carpenter.

    You can read more here about Mr. Harrison and what he did for all of "us" in figuring out how to determine longitude.

    http://www.surveyhistory.org/john_ha...timepiece1.htm

    http://users.actcom.co.il/meccano/technology.htm

    http://www.reference.com/browse/wiki/John_Harrison

    Here is an image of a reproduction of the Grasshopper by Comitti of London. We own one and it is our favorite clock in our collection.



    Stephen

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    Re: When is it necessary to use GMT time

    Well there are a few different types of GMT watches.

    The most well know is where the main hour hand shows your current location, and is a quick set, i.e. not stopping the second hand from moving. The GMT hand (or hometime, second time) hand is kept displaying the time at home, or another time. Rolex and Omega have these type of movements.

    Others, like Hamilton Khaki Navy GMT, for example, the GMT hand is the quickset, i.e. moves quickly instead of the main dial. These types of watches are more for people who need to know time in other zones frequently, and do not travel as much.

    I prefer the Rolex/Omega type watches, even though I don't travel in multi-timezones that much.

    Or you could go for a watch like the Vogard, where the bezel is the GMT set time. Unlocking and then turning the bezel sets the local and GMT time at once, moving the date as well forward and backwards when passing midnight. This is my favorite watch by far...


  10. #9
    Banned picard's Avatar
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    Re: When is it necessary to use GMT time

    Quote Originally Posted by obie
    Well there are a few different types of GMT watches.

    The most well know is where the main hour hand shows your current location, and is a quick set, i.e. not stopping the second hand from moving. The GMT hand (or hometime, second time) hand is kept displaying the time at home, or another time. Rolex and Omega have these type of movements.

    Others, like Hamilton Khaki Navy GMT, for example, the GMT hand is the quickset, i.e. moves quickly instead of the main dial. These types of watches are more for people who need to know time in other zones frequently, and do not travel as much.

    I prefer the Rolex/Omega type watches, even though I don't travel in multi-timezones that much.

    Or you could go for a watch like the Vogard, where the bezel is the GMT set time. Unlocking and then turning the bezel sets the local and GMT time at once, moving the date as well forward and backwards when passing midnight. This is my favorite watch by far...

    what is the watch in that picture? Do you have larger version of same photo? I am interested in that watch. B-)

  11. #10
    stuffler,mike
    Guest

    Re: When is it necessary to use GMT time

    Quote Originally Posted by picard
    what is the watch in that picture? Do you have larger version of same photo? I am interested in that watch. B-)
    Look at www.vogard.com

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