>>Thanks Sergey
>>
>>I'm looking for the meaning of certain acronyms also. If you look at the UT on line page you’ll find terms like PT and ET, I know there are more, but What do they exactly mean?
>>
>>Regards
>>
>< SNIP >
>
>PT or PST - Pacific Time
>ET or EST - Easter Time
>CT or CST - Central Time

Just a slight note on PDT vs PST
The S means standard time, D is daylight savings time.