[ntp:questions] Can or should the NTP protocol eventually serve timezone data?

Danny Mayer mayer at ntp.org
Wed Jun 17 17:44:46 UTC 2009

Joe wrote:
> Timezone data is fairly dynamic. It makes sense to have some form of
> network service to update timezone data. Does anyone know if there
> have been any proposals about a standardized timezone update protocol,
> or reasons why there should not be one? Since NTP is well established,
> maybe it could be expanded to include timezone data?

No. timezone information is a local thing. If the NTP server is in
Sydney, Australia and the client is in London,England what would the
server in Sydney know about the timezone in England. This is an extreme
example but it demonstrates the principle. NTP only knows and cares
about UTC. Timezones are a local issue and furthermore dependent on the
O/S for format required.


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