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Public-images-osm logo.svg date
Osm element key.svg
Date when feature happened. Edit or translate this description.
Group: Properties
Used on these elements
may be used on nodesmay be used on waysmay be used on areasuse on relations unspecified
Useful combination
Status: de facto


Date when feature happened.


Dates use the ISO 8601 system, which is based on the Gregorian calendar.


  • 2010 ; where the year is known, but no more
  • 0897 (for 897 AD)
  • 1848-07 ; where the year and month are known
  • 2010-03-31 ; for where the full date is known, using the format yyyy-mm-dd

Caution: ISO8601 uses the format yyyy-mm-dd, not the common North American model of mm-dd-yyyy

See also