Zulu time

Does anyone know of a clock widget that displays zulu time? This would be helpful for converting info from various sources to the correct local time. Thanks.

Posted on Sep 22, 2005 7:34 AM

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10 replies

Sep 22, 2005 10:48 AM in response to bdmarsha

bd:

Not exactly: Zulu time is Greenwich Mean Time, which is the base time for setting time zones all around the world. It does not change in spring and fall, as US and European time zones do. So, for example, the difference between East Coast time and Zulu time in the summer is four hours, and in the winter five. Using London as a time zone doesn't work, as London observes daylight savings time and is therefore always five hours off East Coast time.

What I want is a clock display that will show Zulu time next to my local time so that I don't have to do the calculating in my head constantly.

The standard clock widget does not do this.

Sep 22, 2005 12:20 PM in response to Thomas R. Doolittle

Thomas,

Well, because there is no preset for GMT, you could just set a clock widget to display the time in one of the west Africa cities in the Greenwich time zone that do not mess with DST (e.g. Accra). I think that this works. If it does, then it would be fairly easy do edit the clock widget's city list to make one of these cities display 'GMT' or 'Zulu' instead of the city name.

bd

Sep 22, 2005 2:54 PM in response to Thomas R. Doolittle

I live just 5degrees west of the Greenwich meridian (though 55 degrees north). I have my time set to Edinburgh or London which are on the meridian near as d it. I am not sure if that gives me British Summertime or whatever. If it does then the Apple routine for the clock or any third party app which works on location will do the same for any place one the meridian, and will vary the presented time according to seaswon. If not it may stick you with something like the double summertime we had in WW2.

Incidentally why do you call it 'Zulu' time. I can't say I have checked the longitude of the Zulu homeland in Natal but I would bet Natal is not on it nor is is it in West Africa.

I do agree Thomas about the utility of GMT. Armies use it. They after all move about the world and local times would be a problem for synchronisation

Sep 22, 2005 8:42 PM in response to Robert Newall

"why do they call it zulu time?......."
I believe when the time zones were originally set up (don't know when that was), they started at 0 degrees longitude and while proceeding east they labeled each 15 degree zone with a letter of the alphabet (alpha, bravo, charlie, etc..) omitting I and O there were 24 time zones, the last one (from 15 degrees West to zero) contain the city of Greenwich, hence the name Greenich Mean Time and the name Zulu time...at least that was how it was told to me....

Sep 23, 2005 5:14 AM in response to Thomas R. Doolittle

Thanks Kevin, we live and learn. The choice made is confusing. It confused me. I do hope Thomas gets his GMT clock. I keep at least one watch always on GMT.
I remember hearing of a woman in the 19th century who 'took the time to Southend'. She would carry an accurate time piece on the train from London to Southend on the Thames estuary to provide synchronisation to subscribers. There were indeed quite idiosycratic local times not related to longitude.
Am I right? When I look at a map I have of US time zones it appears there are several 'time islands'.

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Zulu time

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