Board times an hour out?

Sixchan, you misunderstand me.

1. The forum times are currently correct, at least for me.
2. A year ago, the forum times were wrong, so lots of people set their personal control panels to compensate.
3. When the server time was corrected, everyone who had done so was now showing the wrong time.

If the server times show incorrectly for you, just go into your CP and adjust accordingly. Should take you just 30 seconds or so.
 
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Already done that a while ago.

But you've adjusted the forum clock to take DST into account, right? This makes the statement at the bottom of the forum that "All times are GMT" wrong.
 




Liquide said:
Hmm wouldn't the GMT statement on the bottom of the board pages actually show UTC time?

Unless you get into specifics, there is no applicable difference between the two. UT1 (a flavour of UTC) measures the rotation angle of the earth to find the time, and can be different from regular UTC, and therefore GMT, which is always the same time as UTC.

Of course, there is always GMAT, which is GMT when the start of the day is measured from noon, which is what was used a hundred and more years ago.
 

Sixchan said:


Unless you get into specifics, there is no applicable difference between the two. UT1 (a flavour of UTC) measures the rotation angle of the earth to find the time, and can be different from regular UTC, and therefore GMT, which is always the same time as UTC.

Of course, there is always GMAT, which is GMT when the start of the day is measured from noon, which is what was used a hundred and more years ago.

Well lets see :)

From: http://aa.usno.navy.mil/faq/docs/UT.html
What is Universal Time?

The times of various events, particularly astronomical and weather phenomena, are often given in "Universal Time" (abbreviated UT) which is sometimes referred to, now colloquially, as "Greenwich Mean Time" (abbreviated GMT). The two terms are often used loosely to refer to time kept on the Greenwich meridian (longitude zero), five hours ahead of Eastern Standard Time. Times given in UT are almost always given in terms of a 24-hour clock. Thus, 14:42 (often written simply 1442) is 2:42 p.m., and 21:17 (2117) is 9:17 p.m. Sometimes a Z is appended to a time to indicate UT, as in 0935Z.

When a precision of one second or better is needed, however, it is necessary to be more specific about the exact meaning of UT. For that purpose different designations of Universal Time have been adopted. In astronomical and navigational usage, UT often refers to a specific time called UT1, which is a measure of the rotation angle of the Earth as observed astronomically. It is affected by small variations in the rotation of the Earth, and can differ slightly from the civil time on the Greenwich meridian. Times which may be labeled "Universal Time" or "UT" in data provided by the Astronomical Applications Department of the U.S. Naval Observatory (for example, in the annual almanacs) conform to this definition.

However, in the most common civil usage, UT refers to a time scale called "Coordinated Universal Time" (abbreviated UTC), which is the basis for the worldwide system of civil time. This time scale is kept by time laboratories around the world, including the U.S. Naval Observatory, and is determined using highly precise atomic clocks. The International Bureau of Weights and Measures makes use of data from the timing laboratories to provide the international standard UTC which is accurate to approximately a nanosecond (billionth of a second) per day. The length of a UTC second is defined in terms of an atomic transition of the element cesium under specific conditions, and is not directly related to any astronomical phenomena.

UTC is the time distributed by standard radio stations that broadcast time, such as WWV and WWVH. It can also be obtained readily from the Global Positioning System (GPS) satellites. The difference between UTC and UT1 is made available electronically and broadcast so that navigators can obtain UT1. UTC is the basis for civil standard time in the U.S. and its territories. Standard time within U.S. time zones is an integral number of hours offset from UTC.

UTC is equivalent to the civil time for Iceland, Liberia, Morocco, Senegal, Ghana, Mali, Mauritania, and several other countries. During the winter months, UTC is also the civil time scale for the United Kingdom and Ireland.

One can think of UT1 as being a time determined by the rotation of the Earth, over which we have no control, whereas UTC is a human invention. It is relatively easy to manufacture highly precise clocks that keep UTC, while the only "clock" keeping UT1 precisely is the Earth itself. Nevertheless, it is desirable that our civil time scale not be very different from the Earth's time, so, by international agreement, UTC is not permitted to differ from UT1 by more than 0.9 second. When it appears that the difference between the two kinds of time may approach this limit, a one-second change called a "leap second" is introduced into UTC. This occurs on average about once every year to a year and a half.

For more information on time, time scales, and accurate clocks, see the U.S. Naval Observatory Time Service Department web pages. Related information can be found on the pages of the National Institute of Standards and Technology (NIST).
]

He, he it is cool what you can get to know out of a little search.

UTC BTW is the standardization for all times generated with PHP not GMT, the PHP doumentation even tells us NOT to refer to UTC time as GMT :) , and since this board is in PHP it is UTC ;) , however since the time is in AM/PM format it shouldn't be referred to as UTC but instead as GMT (since UTC is always in 24H format while GMT can be in either 24H or 12H) but the code that generates it in PHP has to create a UTC timestamp string in order to format it correctly, so the time on this board is really UTC but displayed as GMT (confusing?).
 
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Liquide said:


Well lets see :)



He, he it is cool what you can get to know out of a little search.

UTC BTW is the standardization for all times generated with PHP not GMT, the PHP doumentation even tells us NOT to refer to UTC time as GMT :) , and since this board is in PHP it is UTC ;) , however since the time is in AM/PM format it shouldn't be referred to as UTC but instead as GMT (since UTC is always in 24H format while GMT can be in either 24H or 12H) but the code that generates it in PHP has to create a UTC timestamp string in order to format it correctly, so the time on this board is really UTC but displayed as GMT (confusing?).

Actually, the time being displayed is GMT/UTC +1, and it is being wrongly referred to as unadjusted GMT/UTC.
 
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