C#

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.

C#

bool success = false;

string ulid = "01GRH14AA82EY9A7S99YYF2QDY";

Chilkat.CkDateTime dt = new Chilkat.CkDateTime();

// Unix timestamps stored in ULIDs should be UTC...
bool bLocal = false;
// Set the CkDateTime from the timestamp contained in the ULID
success = dt.SetFromUlid(bLocal,ulid);
if (success == false) {
    Debug.WriteLine("ULID was not valid.");
    return;
}

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

// Sample output:

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