Java

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.

Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    String ulid = "01GRH14AA82EY9A7S99YYF2QDY";

    CkDateTime dt = new CkDateTime();

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

    // You can now get the date/time in any desired format.
    // For example:
    System.out.println("Unix timestamp = " + dt.GetAsUnixTime(bLocal));
    System.out.println("RFC822 = " + dt.getAsRfc822(bLocal));
    System.out.println("Timestamp = " + dt.getAsTimestamp(bLocal));

    // Sample output:

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