help me understand time

[weatherwoman]

I'm trying to learn what time the models run what is 00z time and 006 and so on is there such a time as 00z ?

[P.K.]

The models are run at either 6 hourly or 12 hourly intervals. To make sure all models are initialised at the same time they are run at 12:00am GMT, 6:00am GMT, 12:00pm GMT, or 6:00pm GMT. GMT is Greenwich Mean Time, and is basically the time zone running through London (When we aren't on British Summer Time)

[Aquawind]

http://www.aoml.noaa.gov/hrd/tcfaq/A13.html



Paul

[gtalum]

help me understand time

Well there's a big hand and a little hand...

Just kidding!

[P.K.]

UTC stands for Universal Time Coordinated, what used to be called Greenwich Mean Time (GMT) and Zulu Time (Z). This is the time at the Prime Meridian (0° Longitude) given in hours and minutes on a 24 hour clock. For example, 1350 UTC is 13 hours and 50 minutes after midnight or 1:50 PM at the Prime Meridian.

Well that is wrong for a start, it is still called GMT. Don't know where this Prime Meridian thing has come from either, it is the Greenwich Meridian.

[soonertwister]

Here in Boulder, where the world's time clocks are kept on time, the automated message when you dial up their audible timeserver says "Coordinated Universal Time."

I guess that "CUT" doesn't sound as sexy as UCT to the boys who make up the abbreviations for this.

To me it will always be Greenwich Time. BTW, anyone can access the voice time at NIST in Boulder by dialing 303.499.7111.

[Brent]

When the U.S. is on Daylight Savings Time(most of hurricane season) you subtract 4 hours for Eastern time, 5 hours for Central, 6 hours for Mountain, 7 hours for Pacific.

So 12z is 8am EDT... 5am Pacific.