History

Time	Change
2018-10-10 15:25:53+00:00	Created
2018-10-10 15:25:53+00:00	Associated with Appendix IV of the Publications of the United States Naval Observatory
2018-10-10 16:07:14+00:00	Associated with Publications of the United States Naval Observatory
2019-02-03 09:39:38+00:00	Associated with THE PRESENT STATUS OF THE USE OF STANDARD TIME