Re: CET timezone

Ton Voon wrote:
>timezones, but DateTime doesn't support the timezone CET. Is there a  
>reason for it?

The lettered abbreviations for timezones are generally ambiguous.
Most famously, there's an "EST" in both America and Australia.  I don't
think there's any "CET" other than Central European Time, though.
Generally these abbreviations are deprecated.

CET is almost certainly not what you want, though.  CET is a fixed
offset of UT+1h.  The civil time in west-central continental Europe is
UT+1h during the winter and UT+2h (Central European Summer Time, CEST)
during the summer.  I'm not aware of any short name for this CET/CEST
combination.  CET is year-round civil time only in certain equatorial
countries, such as Angola.

>               Is it better to specify a timezone based on a location,  
>such as Europe/Paris?

Yes.  These unambiguously refer to the civil time in a particular
location.

-zefram