0219

0219 is a four-digit numeric string that can serve as an identifier in various systems, or as a representation of a year or a date. When written without a leading zero, it is the number 219.

In historical notation, 0219 may denote the year 219 CE in four-digit year conventions used for indexing chronologies.

As a date, the digits 02/19 correspond to February 19 in calendars that use month-day formatting, such as those in the United States. In other countries, the same digits could be read as 19 February in day-month notation; the meaning depends on regional date formats.

In modern data systems, 0219 commonly appears as a code, catalog number, or part number. It may be used to label documents, products, or entries in inventories. Leading zeros are often significant in identifiers to preserve fixed-width fields.

In computing, a literal beginning with a zero is treated differently in some languages; for example, a value written as 0219 might be interpreted as octal in languages that use leading zeros to indicate base 8. However, digits beyond 7 (such as 9) are invalid in octal notation, making such a literal ill-formed in those contexts.

See also: 219, February 19, 02/19.