OpenHistoricalMap/Tags/Key/end_date:edtf
end_date:edtf |
Description |
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Approximate or uncertain date when the feature went out of existence. |
Group: lifecycle |
Used on these elements |
Requires |
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Useful combination |
Status: de facto |
Tools for this tag |
This subkey of end_date=* qualifies the feature's end date in the Extended Date Time Format, a profile of ISO 8601 that supports times of day, uncertainty, approximation, and seasons.
How to tag
Tag the EDTF end date in end_date:edtf=*. For backwards compatibility, also set end_date=* to the most accurate date that can be expressed in that key's more rigid YYYY-MM-DD
format.
Examples
"1272":
end_date=1272
end_date:edtf=1272[1]"October 4 [2011] at 5:00 PM":
end_date=2011-10-04
end_date:edtf=2011-10-04T05:00"circa 1871":
end_date=1871
end_date:edtf=1871~"the mid sixteenth century":
end_date=1550
end_date:edtf=1550~"1960s":
end_date=1960
end_date:edtf=196X"between 1908 and 1909":
end_date=1908[2]
end_date:edtf=1908/1909 or [1908..1909][3]"the early 1840s":
end_date=1840
end_date:edtf=1840/1845"the winter of 1940":
end_date=1940
end_date:edtf=1940-24"for almost 90 years [since 1910]":
end_date=2000
end_date:edtf=/2000 or [..2000][3]
Software support
In iD, you can click the button in the End Date field to set an EDTF date. iD validates this date and will warn if it is malformed or the end_date=* falls outside the range of possible dates described by the EDTF date. If the end_date=* is expressed in OSM's "approximations" format, iD will flag it as an invalid date and offer to replace it with the equivalent end_date:edtf=* tag in EDTF format.
No renderer has built-in support for EDTF dates yet.
See also
- start_date:edtf=*
- Open Historical Map/Dates And Times
- Open Historical Map/Tags/Proposed/Tag:start date=datespec