| ISO 8601 Standards | History of Calendars & Time - Gilbert HEALTON |
| 600-year code Matrix | Examples of dates codes used in Electronic Tenders |
| DAY 01 Jan | ||||||
| DAY OF WEEK | ||||||
| Sunday | 2012 | 2006 | 1995 | 1989 | 1984 | |
| Monday | 2007 | 2001 | 1996 | 1990 | ||
| Tuesday | 2013 | 2008 | 2002 | 1991 | 1985 | |
| Wednesday | 2014 | 2003 | 1997 | 1992 | 1986 | |
| Thursday | 2015 | 2009 | 2004 | 1998 | 1987 | |
| Friday | 2016 | 2010 | 1999 | 1993 | 1988 | |
| Saturday | 2011 | 2005 | 2000 | 1994 |