International Calendar/Month formats

Proposed month-based formats with digits code

3-month triad
level of detail	full date		year implied		more implied
q/y	±CCYY-Q	±4-1	-Q	-1
m/q/y	±CCYY-Q-M	±4-1-1	-Q-M	-1-1
d/m/q/y	±CCYY-Q-M-DD	±4-1-1-2	-Q-M-DD	-1-1-2	--M-DD	--1-2
d/q/y	±CCYY-Q-DD	±4-1-2	-Q-DD	-1-2
weekday
level of detail	full date		year implied		more implied
dw/q/y	±CCYY-Q-WW-D	±4-1-2-1	-Q-WW-D	-1-2-1
dw/m/y	±CCYY-MM-W-D	±4-2-1-1	-MM-W-D	-2-1-1	--W-D	--1-1