On Sat, Sep 24, 2011 at 3:53 AM, Steve Allen <sla@ucolick.org> wrote:
On 2011 Sep 23, at 18:44, <Paul_Koning@Dell.com> wrote:
So if country A says its legal time is an hour ahead of GMT and B says they are an hour ahead of UTC, those are technically different statements. However, to the approximation of tzdata, the outcome is the same: both country A and B would be shown in the tzdata file as having an offset of 60 minutes.
Is that correct?
It is correct under ITU-R TF.460-6.
http://www.itu.int/dms_pubrec/itu-r/rec/tf/R-REC-TF.460-6-200202-I!!PDF-E.pd... has no reference to GMT. Also I don't understand why tzdata approximation is involved. I would assume that legal GMT in the UK in the year 2011 is exactly the same as UTC. I could not find a law for that. Maybe an older legal definition would make GMT the same as UT0. ITU-R TF.460-6: "UT0 is the mean solar time of the prime meridian obtained from direct astronomical observation;" Can anyone give a UK law relating GMT to UTC? -- Tobias Conradi Rheinsberger Str. 18 10115 Berlin Germany http://tobiasconradi.com/tobias_conradi