Table Of GYMD (Version 2) Date Codes


CodeGeneration Year Month Day
0 1080-1109 0 ---- ----
1 1110-1139 1 January 1
2 1140-1169 2 February 2
3 1170-1199 3 March 3
4 1200-1229 4 April 4
5 1230-1259 5 May 5
6 1260-1289 6 June 6
7 1290-1319 7 July 7
8 1320-1349 8 August 8
9 1350-1379 9 September 9
A 1380-1409 10 October 10
B 1410-1439 11 November 11
C 1440-1469 12 December 12
D 1470-1499 13 *January 13
E 1500-1529 14 *February 14
F 1530-1559 15 *March 15
G 1560-1589 16 *April 16
H 1590-1619 17 *May 17
I 1620-1649 18 *June 18
J 1650-1679 19 *July 19
K 1680-1709 20 *August 20
L 1710-1739 21 *September 21
M 1740-1769 22 *October 22
N 1770-1799 23 *November 23
O 1800-1829 24 *December 24
P 1830-1859 25 ---- 25
Q 1860-1889 26 ---- 26
R 1890-1919 27 ---- 27
S 1920-1949 28 ---- 28
T 1950-1979 29 ---- 29
U 1980-2009 ---- ---- 30
V 2010-2039 ---- ---- 31
W 2040-2069 ---- ---- ----
X 2070-2099 ---- ---- ----
Y 2100-2129 ---- ---- Approx
Z Unknown Unknown UnknownUnknown

* The starred months (codes D to O) are used only when the year does not end with December. For example, English dates between January 1st and March 24th in the years before 1752 would use the codes D, E and F to preserve the correct sorting order.

Find out more about the GYMD code, or go back to the GYMD Home Page.