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

Ryan Malayter malayter at gmail.com
Wed Jun 17 18:01:57 UTC 2009

On Wed, Jun 17, 2009 at 12:44 PM, Danny Mayer<mayer at ntp.org> wrote:
> 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?

The official IETF standard for Timezone data exchange is part of the
iCalendar standards. However, there is not even a "universal list of
timezones" in those standards; the timezone definitions are

There are tools that conver the UNIX-oriented Olsen tzdata files into
iCalendar format, and others that convert the Windows timezone
database into iCalendar format. But one size definitely does not fit
all. This is not a problem NTP can solve.


More information about the questions mailing list