LDAP use a 18 digit timestamp format. It’s an epoch timestamp.
To convert it to an DateTime Object use the following function
$MyDate=(Get-Date 01.01.1601).AddSeconds(132907192451438148/1000000/10) $MyDate Wednesday, 2. March 2022 18:27:25
Explaintation: The epoch timestamp are 100-nanosecond intervals since 1. January of 1600. Therefore Devide it through 10 then you get the microseconds, devide it through 1000000 then you get the seconds.