What is the time standard used for time stamps of files?

[dt2...@columbia.edu]

Is the time standard for each 3-hour ISCCP HGG file (for example the 0600 in 1985.03.01.0600) Coordinated Universal Time (UTC) or some other standard?

Also for confirmation, the first file for each day starts at 12 AM/0000 and ends at 9 PM/2100?

Thank you.

[gardne...@gmail.com]

I found this in the code documentation....

"ISCCP products are produced at eight nominal times per day. Each nominal time (00,03,06,09,12,15,18,21 GMT) represents a 3-hour time window. This window is referred to as a timeslot, called “nomtim” for processing. The actual data time may be anywhere within this 3-

hour window of +/- 1.5 hours around the nominal time. Note that nominal time 00 may include data from 22:30 of the previous day." 

So it looks to me like all times are GMT.

[Ken Knapp - NOAA Federal]

That answer is right. Thanks for answering!

-Ken

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