public Interface TimeZonePropertyValidators

       Format Definition:  This property is defined by the following
      notation:

       tzid       = "TZID" tzidpropparam ":" [tzidprefix] text CRLF

       tzidpropparam      = *(";" other-param)

       ;tzidprefix        = "/"
       ; Defined previously. Just listed here for reader convenience.

       Format Definition:  This property is defined by the following
      notation:

       tzname     = "TZNAME" tznparam ":" text CRLF

       tznparam   = *(
                  ;
                  ; The following is OPTIONAL,
                  ; but MUST NOT occur more than once.
                  ;
                  (";" languageparam) /
                  ;
                  ; The following is OPTIONAL,
                  ; and MAY occur more than once.
                  ;
                  (";" other-param)
                  ;
                  )

       Format Definition:  This property is defined by the following
      notation:

       tzoffsetfrom       = "TZOFFSETFROM" frmparam ":" utc-offset
                            CRLF

       frmparam   = *(";" other-param)

    Format Definition:  This property is defined by the following
      notation:

       tzoffsetto = "TZOFFSETTO" toparam ":" utc-offset CRLF

       toparam    = *(";" other-param)

       Format Definition:  This property is defined by the following
      notation:

       tzurl      = "TZURL" tzurlparam ":" uri CRLF

       tzurlparam = *(";" other-param)