Update timezone-parse-date to recognize the basic iso8601 format?

[Mark A. Hershberger]

timezone-parse-date says it recognizes the following format:

    1996-06-24 21:13:12 [GMT]

In fact it recognizes this form as well:

    1996-06-24T21:13:12 +8:00
    1996-06-24T21:13:12 +800

This form is (according to http://en.wikipedia.org/wiki/ISO_8601) the
extended ISO8601 format.

I would like to make it also recognize the basic format:

    19960624T211312+800
    19960624T211312Z

(The Z specifies UTC)

Before I make the changes, I wanted to check to make sure these changes
hadn't already been considered and rejected.

Thoughts?

Mark.


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