I have an issue with SharePoint date time field.

Basically I have a date time field, and this field contains for example 19/12/2014 11:30:00. I would like to get this date and remove the time part, so i have then 19/12/2014 00:00:00, but when i set 2014-01-12T00:00:00Z, and i try to retrieve it later, i get 1/12/2014 1:00:00 AM, so i have no idea where this 1AM comes from.

Any idea? Here is the script how i do it

$nDate = new-object System.DateTime ($dateTime.Year, $dateTime.Month, $dateTime.Day);
$date = [Microsoft.SharePoint.Utilities.SPUtility]::CreateISO8601DateTimeFromSystemDateTime($nDate)
$item["DateTimeField"]= $nDate;


  • Do you retrieve it and parse it to ISO8601 again, to eliminate time zones etc? Commented Dec 19, 2013 at 8:51

1 Answer 1


The SPUtility.CreateISO8601DateTimeFromSystemDateTime is an extremely badly coded DateTime format function.

It has a hard requirement that the DateTime passed to it is in UTC as it just hardcoded adds Z as the zone designator.

So you have to convert your DateTime to UTC using mySite.RegionalSettings.TimeZone.LocalTimeToUTC(date) or some other method before calling it.

See Converting Date and Time Values

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