(PowerShell) Extract Timestamp from ULID

See more ULID/UUID Examples

Extract the date/time from a ULID.

Important: Chilkat's ULID functionality was introduced in v9.5.0.94.

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Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

$ulid = "01GRH14AA82EY9A7S99YYF2QDY"

$dt = New-Object Chilkat.CkDateTime

# Unix timestamps stored in ULIDs should be UTC...
$bLocal = $false
# Set the CkDateTime from the timestamp contained in the ULID
$success = $dt.SetFromUlid($bLocal,$ulid)
if ($success -eq $false) {
    $("ULID was not valid.")
    exit
}

# You can now get the date/time in any desired format.
# For example:
$("Unix timestamp = " + $dt.GetAsUnixTime($bLocal))
$("RFC822 = " + $dt.GetAsRfc822($bLocal))
$("Timestamp = " + $dt.GetAsTimestamp($bLocal))

# Sample output:

# Unix timestamp = 1675608861
# RFC822 = Sun, 05 Feb 2023 14:54:21 GMT
# Timestamp = 2023-02-05T14:54:21Z