(Get-Culture).DateTimeFormat.GetAbbreviatedDayName($date.DayOfWeek.value__)
Format a DateTime value in the Day Abbreviation format
PS C:\> $Date = Get-Date >> (Get-Culture).DateTimeFormat.GetAbbreviatedDayName($date.DayOfWeek.value__) Thu
(Get-Culture).DateTimeFormat.GetAbbreviatedDayName($date.DayOfWeek.value__)
DetailsPS C:\> $Date = Get-Date >> (Get-Culture).DateTimeFormat.GetAbbreviatedDayName($date.DayOfWeek.value__) Thu