Gregorian:    2026-05-19T03:54:04+00:00       Tue, 19 May 2026 03:54:04 +0000       05/19/26
       Eternal March:  2020-03-2271T03:54:04+00:00     Tue, 2271 Mar 2020 03:54:04 +0000     03/2271/20
   Eternal September: 1993-09-11949T03:54:04+00:00    Tue, 11949 Sep 1993 03:54:04 +0000    09/11949/93
French Revolutionary:    0234-08-30T 1:69:04+00:09       Déc, 30 Flo 0234  1:69:04 +0009       08/30/34