Go Back   Cruiser Log World Cruising & Sailing Forums > Cruising Forums > General Cruising Forum
Cruiser Wiki

Join Cruiser Log Today

Reply
 
Thread Tools Search this Thread Display Modes
 
Old 03-24-2010, 03:31 AM   #1
Ensign
 
Join Date: Mar 2010
Posts: 11
Send a message via Yahoo to Festina
Default

Looking at the Cyclone wanings etc they always talk about Universal time etc. can someone fill me in how it works and converts. Ta Steve
__________________

__________________
Festina is offline   Reply With Quote
Old 03-24-2010, 04:36 AM   #2
Ensign
 
Livia's Avatar
 
Join Date: Jan 2010
Posts: 27
Default

http://wwwghcc.msfc.nasa.gov/utc.html
__________________

__________________
A l'eau, c'est l'heure

s/v Estrellita 5.10b, Wauquiez Pretorien 35

Our Cruising Blog

The Interview With A Cruiser Project
Livia is offline   Reply With Quote
Old 03-24-2010, 11:26 AM   #3
Admiral
 
MMNETSEA's Avatar
 
Join Date: Oct 2004
Posts: 3,067
Default

Quote:
Originally Posted by Livia' date='24 March 2010 - 11:36 AM View Post
Livia and Steve, most of the Cyclone and Typhoon warnings that CruiserLog takes from the Joint Typhoon Warning Center are timed in "Zulu" time. Here is today's offering regarding a Tropical Storm in the Indian Ocean "Imani"

What you see in the text box is '240600Z'

24 is today's date and 0600Z is 6am Zulu or 0600 UTC or 0600 GMT.
Attached Images
File Type: gif TROP STORM IMANI text box.gif (3.4 KB, 4 views)
__________________
MMNETSEA is offline   Reply With Quote
Old 03-24-2010, 09:41 PM   #4
Commander
 
Frank's Avatar
 
Join Date: Sep 2004
Home Port: Puerto Montt
Vessel Name: Westerly Serenade
Posts: 112
Default

UTC ( Universal Time Co-ordinated ) once known as GMT ( Greenwich Mean Time ) for the meridian on which it is based... I reckon UTC is nonsense... it isn't universal... its a Bonapartist plot..... I still speak of GMT..

That said NZ time is 12 hours ahead of GMT... 0600 GMT = 1800 New Zealand time. When you have summer time in NZ you are 13 hours ahead.

Here in Argentina we are currently 3 hours behind GMT... 2142 GMT...1842 Local Time
__________________
= Chile,
I've Contributed to the Cruisers Wiki: Chile
Frank is offline   Reply With Quote
Old 03-25-2010, 05:31 AM   #5
Admiral
 
Nausikaa's Avatar
 
Join Date: Sep 2005
Posts: 1,619
Default

I agree with Frank.

UTC implies that there is one, universal time. This is not true as there are 24 time zones and some areas which are an hour out from the basic time zone.

UTC is mean time at Greenwhich, which to me says that it should still be known as GMT.

I like the NATO system and talk of Zulu time.

Aye // Stephen (currently on Alpha time)
__________________
Yacht NAUSIKAA | Call Sign: 2AJH2




WHEN WAS THE LAST TIME YOU DID SOMETHING FOR THE FIRST TIME?

www.nausikaa.org.uk

= Sweden, Norway, Denmark, Lithuania
Nausikaa is offline   Reply With Quote
Old 03-25-2010, 06:37 AM   #6
Ensign
 
Join Date: Mar 2010
Posts: 11
Send a message via Yahoo to Festina
Default

Hey folks. Thank you very much for the information. I have looked at those going "whats this" now im going Derrrrr . Why didnt I see. Hope you are well and secure. Steve
__________________
Festina is offline   Reply With Quote
Old 03-25-2010, 07:19 AM   #7
Commander
 
Join Date: Sep 2009
Posts: 151
Default

Quote:
Originally Posted by Nausikaa' date='25 March 2010 - 07:31 AM View Post

UTC is mean time at Greenwhich, which to me says that it should still be known as GMT.

I like the NATO system and talk of Zulu time.
Zulu time is actually the NATO name for UTC itself.

GMT and UTC have some slight differences, so they are not the same thing. Only for practical purposes
__________________
magwas is offline   Reply With Quote
Old 03-25-2010, 09:02 AM   #8
Admiral
 
Nausikaa's Avatar
 
Join Date: Sep 2005
Posts: 1,619
Default

Quote:
Originally Posted by magwas' date='25 March 2010 - 08:19 AM View Post

........ they are not the same thing. Only for practical purposes
"In theory, theory and practice are the same but in practice they are not"

But, for the navigator, they are.

Sorry to be an old dog incapable of learning this new trick but I am a navigator not a physicist so I need nothing more advanced than a sextant, a nautical almanac and a chronometer (showing GMT)

Aye // Stephen
__________________
Yacht NAUSIKAA | Call Sign: 2AJH2




WHEN WAS THE LAST TIME YOU DID SOMETHING FOR THE FIRST TIME?

www.nausikaa.org.uk

= Sweden, Norway, Denmark, Lithuania
Nausikaa is offline   Reply With Quote
Old 03-25-2010, 12:09 PM   #9
Commander
 
Frank's Avatar
 
Join Date: Sep 2004
Home Port: Puerto Montt
Vessel Name: Westerly Serenade
Posts: 112
Default

I must admit to using 'Z' in the written form -as in 0230Z - but speak of GMT.

Most times I just use the simpler 'BT' form, 'Brekkie Time', 'Beer Time' and 'Bed Time'

I find the military style of saying 'xxxx Zulu Time' a bit ponderous... shades of '0300 hours AM in the morning'... less is more for me.
__________________
= Chile,
I've Contributed to the Cruisers Wiki: Chile
Frank is offline   Reply With Quote
Old 03-28-2010, 10:07 AM   #10
Ensign
 
Join Date: Nov 2009
Posts: 4
Default

Steve

Try this link

http://www.timeanddate.com/worldclock/city.html?n=22

Allan
__________________

__________________
Allan is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mixing Elbow Universal 5411 airedale Engines | Propulsion | Generators 1 06-14-2011 09:55 AM
Too Much To Do Too Little Time JoSchmaltz General Cruising Forum 2 01-12-2010 06:22 PM
Treacle Time mico General Cruising Forum 3 03-10-2009 12:58 AM
Best name of all time? Yacht Carrousel The Poop Deck 44 10-02-2007 11:54 AM

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

RV & Travel Trailer Communities

Our RV & Travel Trailer sites encompasses virtually all types of Recreational Vehicles, from brand-specific to general RV communities.

» More about our RV Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


All times are GMT. The time now is 01:56 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.0