Description:
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Dear Derick and Date Developers,

First of all, thank you adding timezone and dst support to PHP.  I'm so glad that I don't have to write this class myself and deal with maintaining the backend.

I would like to request automatic dst handling for the DateTime object.

Currently, there is no automatic way to apply a timezone dst offset to the DateTime object.  I'm in the process of writing code that iterates through the timezone transitions array, similar to the sample code from your 2007 talk.

I would love to refactor my code to use a call like this:

void date_timezone_set( 
    DateTime $object,
    DateTimeZone $timezone,
    [, int $apply_dst_offset]
)

Similarly, the date_create function could also take the same optional argument.

Please let me know if this realistic.

Thank you for your time,
Dan