On 8 Jun 2017, at 14:55, Ólafur Guðmundsson via ksk-rollover <ksk-rollover@icann.org> wrote:
Thus I request that ICANN + Verisign commit to publish the DNSKEY set signed by the new KSK on October 11'th at 12:00 UTC as that is the only time it is October 11'th everywhere in the world.
For what it's worth, there is no point in time you could choose that has the same date everywhere. Without daylight savings in those places that use it in the southern hermisphere, the range of UTC offsets exceed 24 hours (UTC-12 to UTC+14). 2017-10-11 1200 UTC is: 2017-10-12 0100 in Kiribati (Phoenix Islands) and Tokelau 2017-10-12 0100 in Fiji and New Zealand (with daylight savings) 2017-10-12 0145 in the Chatham Islands 2017-10-12 0200 in Samoa and Tonga (with daylight savings) 2017-10-12 0200 in Kiribati (Line Islands) That's not an exhaustive list, but you get the idea. I didn't check all the transition times for daylight savings, but New Zealand which is likely where you'd expect to see the most impact changes over in September, I think. Joe