Am Do., 13. Okt. 2022 um 19:31 Uhr schrieb Arthur A. Gleckler <s...@speechcode.com>: > > On Wed, Oct 12, 2022 at 11:01 PM Marc Nieper-Wißkirchen > <marc.nie...@gmail.com> wrote: >> >> You can add 86,400 UTC "seconds" per day if you want UTC dates. > > > That was the hack I was considering, but I thought that assuming 86,400 per > day, even for UTC, was incorrect.
The interface possibly does not implement what I call a UTC second. A UTC second would be longer than a TAI second on those days where a (TAI) leap second is inserted. While TAI seconds roughly measure the flow of proper time (of the Earth geoid reference frame), what I call a UTC second would roughly measure the time it takes for the Earth to rotate. If no such thing as a UTC second is implemented, my idea can´t work. But why don't you simply advance the day field by one? Or is this not possible with the API?