I'm trying to convert string variable to datetime format:
[DateTime]::ParseExact($tempdate, 'dd.MM.yyyy', [CultureInfo]::InvariantCulture).ToString('yyMMdd')
$tempdate
contains date in format dd.MM.yyyy
which was obtained from an Excel file.
Unfortunately I'm getting error message:
Exception calling "ParseExact" with "3" argument(s): "String was not recognized as a valid DateTime." At line:1 char:1 + [DateTime]::ParseExact($tempdate, 'dd.MM.yyyy', [CultureInfo]::Invaria ... + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : NotSpecified: (:) [], MethodInvocationException + FullyQualifiedErrorId : FormatException
It works fine when I put 'clean date' instead of variable.
[DateTime]::ParseExact('13.03.2017', 'dd.MM.yyyy', [CultureInfo]::InvariantCulture).ToString('yyMMdd')
What is wrong with this variable or how can I convert it to datetime in other way?
It works fine when I put 'clean date' instead of variable.
That tells me something is wrong with your $tempdate
first and foremost it should be a string but you could have an issue with leading or trailing whitespace. Consider the following.
PS C:\Users\Bagel> [DateTime]::ParseExact(' 13.03.2017 ', 'dd.MM.yyyy',[CultureInfo]::InvariantCulture)
Exception calling "ParseExact" with "3" argument(s): "String was not recognized as a valid DateTime."
At line:1 char:1
+ [DateTime]::ParseExact(' 13.03.2017 ', 'dd.MM.yyyy',[CultureInfo]::In ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [], MethodInvocationException
+ FullyQualifiedErrorId : FormatException
So, as we have discovered in comments, this appears to be your problem. A simple .trim()
should handle this for you assuming you do not have control over how $tempdate
is populated (If you do you should fix the issue there first).
[DateTime]::ParseExact(' 13.03.2017 '.Trim(), 'dd.MM.yyyy',[CultureInfo]::InvariantCulture)