19661119

19661119 is a numeric date string used in data processing to denote the calendar date November 19, 1966. It adheres to the YYYYMMDD format, which places the year first, followed by the month and day without separators.

In computing and information management, this compact form is favored because it sorts lexicographically in the same order as chronological time and reduces ambiguity across many locales. The equivalent ISO 8601 representation is 1966-11-19, which uses hyphens and is more readable for humans.

The 19661119 pattern appears in filenames, database keys, timestamps, archival identifiers, and other record-keeping contexts where a precise date is required without separators. If a time component is present, it is often appended in a 14-digit form such as 19661119000000 to indicate midnight, or with actual hours, minutes, and seconds.

The eight-digit form can be confused with other calendar systems when the calendar is not specified, but with the Gregorian calendar used widely in most modern databases, 19661119 unambiguously means November 19, 1966 in contexts that follow YYYYMMDD conventions.

For related concepts, see ISO 8601, date and time formats, and the YYYYMMDD notation.