Writes date values in the form <yy>yymm or <yy>yy-mm. The x in the format name represents the special character that separates the year and the month. This special character can be a hyphen (-), period (.), slash (/), colon (:), or no separator. The year can be either two or four digits.
identifies a separator or specifies that no separator appear between the year and the month. These are valid values for x:
separates with a colon.
separates with a hyphen.
indicates no separator.
separates with a period.
separates with a forward slash.
specifies the width of the output field.
| Default | 7 |
| Range | 5–32 |
| Interactions | When x is set to N, no separator is specified. The width range is then 4–32, and the default changes to 6. |
| When x has a value of C, D, P, or S and w has a value of 5 or 6, the date appears with only the last two digits of the year. When w is 7 or more, the date appears with a four-digit year. | |
| When x has a value of N and w has a value of 4 or 5, the date appears with only the last two digits of the year. When x has a value of N and w is 6 or more, the date appears with a four-digit year. |