License for the tzdata information

Sascha Wildner swildner at
Wed Apr 29 07:44:02 UTC 2009

Edwin Groothuis schrieb:
> For all the years I have never worried about this, but today I got an email in
> my mailbox asking me "Since this is vendor imported data, we would like to
> register under which license this data is distributed.".
> Unfortunately I got not much info from Wikipedia, the tzdata or the tzcode
> files. The tzcode says "This code is in the public domain", but the tzdata
> doesn't have it, just a "This information is by no means authoritative".
> So... is there a license under which the tzdata is distributed?

tz-link.htm at least states that "The public-domain time zone database 
contains code and data that represent the history of local time for many 
representative locations around the globe."


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