ISO 3307 is an international standard for date and time representations issued by the International Organization for Standardization (ISO). The standard was issued in 1975, then was superseded by ISO 8601 in 1988.
- Technical Committee ISO/TC 154, Processes, data elements and documents in commerce, industry and administration. (2004-12-01). "ISO 8601:2004(E)". ISO. Retrieved 2006-11-15.
Annex A … From that concept representations of all other date and time values were logically derived; thus, ISO 2014, ISO 3307 and ISO 4031 have been superseded.