19710419

19710419 is a numeric date commonly used in data processing and archival contexts to denote the date 19 April 1971 in the Gregorian calendar. The eight-digit string encodes the year, month, and day in the order year-month-day (YYYYMMDD). In textual form, the same date is written as 1971-04-19 under the ISO 8601 standard. Different locales may represent the same day as 04/19/1971 (United States) or 19/04/1971 (much of Europe). When used without separators, 19710419 can serve as a compact, sortable key in databases, filenames, logs, and versioning systems, facilitating lexicographic ordering by date.

This representation is sensitive to leading zeros and parsing rules; for example, some systems treat the value as a pure integer, which can obscure the day or month if not parsed carefully. The format is widely supported in programming languages and database schemas because it preserves chronological order when sorted as strings or numbers.

The date is part of the Gregorian calendar, which is used in most of the world for civil purposes, though some cultures historically used other calendars. The term 19710419 may also appear in data sets, historical records, or file naming conventions where an unambiguous, comparable date is required.

See also: ISO 8601, Gregorian calendar, YYYYMMDD format, Julian day number (different concept).