The Time Zone Data Distribution Service (TZDIST) Geolocate Extension

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Last updated 2019-05-13 (latest revision 2018-11-09)
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This document defines an extension to the Time Zone Data Distribution Service (RFC 7808) to allow a mobile device to retrieve the time zones associated with a geographic location as specified by a 'geo' URI (RFC 5870). Open Issues o Determine which, if any, GEOPRIV requirements we need to follow and how they impact Security/Privacy considerations. o Need a new field(s) in the response to indicate which time zone(s) contain the point location vs those which are nearby (intersect the radius of uncertainty).


Ken Murchison (

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