Date: Thu, 21 Dec 2023 12:08:27 -0800 From: Paul Eggert via tz <tz@iana.org> Message-ID: <c9670e1d-31cf-4449-a57e-60c48b112a3c@cs.ucla.edu> | Unfortunately, it doesn't suffice to know just the current UTC offset. | We would need to know the past UTC offsets back to at least 1970, Not need, desire - we have had incorrect information in the past, we undoubtably will continue to do so (as we obviously have had recently). Refusing to install anything because it isn't perfect is only slightly better than refusing to take any information at all. We should be accepting the best that's available - we can guess at what we don't know based upon what seems likely, include comments to indicate that some of the information is unverified and likely wrong, and wait for someone to do better (even an anecdote "my grandfather said he visited XXX in 1982 and the time then was 5 hours different from where he came from...") which might provide something more accurate than we had before, and just keep on improving as better info appears (which is actually quite rare - most people are happy to accept whatever they're told, and if that is reasonable, they don't care, and nor should we.) | and also to know when the base was and wasn't inhabited during that period. We definitely don't need to know that. That's just an internal rule we invented that says that time doesn't matter if there's no human to observe it. Pre networking and computers everywhere, that was kind of reasonable. Now it isn't - for places no-one has ever been, it remains OK to fail to speculate upon what the time might be there, if only there was someone to observe (or define) it. But once someone has set the time at a place, that time should be assumed to continue to run, until someone else changes it. Even if there has been no human at the location in a long time - they may have left running experiments that are logging events at the current idea of the time (they can be using GPS to get reasonable accuracy) which need a frame of reference if they're not just using UTC. | And we need citations to sources for this information. No, we don't need those either. We prefer to have them, as something with which to show others from where we got the data, but "personal communication from Mr X on 2023-12-xx" is good enough really. Better sources are always better to have, but that are not a requirement, or should not be. kre

Okay, I guess I got the idea. You want some more historical data about bases I mentioned. And neither brief data stated at https://www.aari.ru/ekspeditsii/rossiyskaya-antarkticheskaya-ekspeditsiya-(r...) nor wikipedia are not enough. I got in touch with people who moderate AARI site so I believe we can prove it soon. 22.12.2023 01:08, Paul Eggert пишет:

Unfortunately, it doesn't suffice to know just the current UTC offset. We would need to know the past UTC offsets back to at least 1970, and also to know when the base was and wasn't inhabited during that period. And we need citations to sources for this information.

-- УВАЖЕНИЕМ= АПС АКУЛОВ= 69 РАЭ СТ ВОСТОК-