Not very refined, but it should work:

variables
  string vNlsInternalTime
  string vUTCDateTime
  datetime vDateTime
endvariables

vNlsInternalTime = $nlsinternaltime
$nlsinternaltime = "UTC"
vUTCDateTime = "2019-06-06T08:58:42.1878669Z"
; replace all non numeric characters in the input string
vUTCDateTime = $replace(vUTCDateTime, 1, "-", "", -1)
vUTCDateTime = $replace(vUTCDateTime, 1, '&', "", -1)
vUTCDateTime = $replace(vUTCDateTime, 1, ":", "", -1)
vUTCDateTime = $replace(vUTCDateTime, 1, ".", "", -1)
; convert string to datetime
vDateTime = $datim(vUTCDateTime[1:16])
; First value is the internal datetime value in UTC
; Second value (substituted string) is the local time
putmess $concat(vDateTime, " - ", "%%vDateTime")
$nlsinternaltime = vNlsInternalTime

Result: 

"2019060608584218 - 06-jun-19 10:58:42"

I hope this helps.

Kind regards,
Daniel

Hi Daniel,

I'll try it right away and thank you for your quick reply.

My best regards

Luigi Giuliante

Very perfect.

Many thanks

Luigi

You are welcome.

Kind regards,
Daniel

It's a bit late 🙂 but another option is to base the conversion on Uniface, which is able to understand xsd:datetime when handling XML.

So, a temporary XML and XSD is made in order to perform the conversion.

entry LP_CONVERT
    params
        string C_DATE : in
        datetime E_DATE : out
    endparams
          
    variables
        string VXDATE
        struct VSDATE 
    endvariables
	;write XML data
    VXDATE = $concat("", C_DATE, "")
	;prepare temporal xsd
    filedump/text $xsd, "schema.xsd"
	;convert XML to Struct using schema
    xmltostruct/schema VSDATE, VXDATE, "schema.xsd"
    if ($status >= 0) E_DATE = VSDATE->d->$scalar
    filedelete "schema.xsd"
     
     
xsd:blockdata #
  
#
end

So, you can use it with any xsd:datetime valid format.

variables
	string vString
	datetime vTimestamp
	string vNlsInternalTime
endvariables
vNlsInternalTime = $nlsinternaltime
$nlsinternaltime = "UTC"

vString = "2019-06-06T08:58:42.1878669Z" ;Zulu
call LP_CONVERT(vString, vTimestamp)

vString = "2019-06-06T08:58:42.1878669+09:00" ;at Tokio
call LP_CONVERT(vString, vTimestamp)

$nlsinternaltime = vNlsInternalTime

Regards

Luis