"Paul" == Paul Eggert <eggert@cs.ucla.edu> writes:
On 7/30/20 9:19 AM, Paul Eggert wrote:
Thank you for the heads-up. I submitted a note about this to the RISKS Digest <https://catless.ncl.ac.uk/Risks/> as I think your takeaways deserve wider circulation.
Paul> That note was published yesterday, here: Paul> Eggert P. Hospital lab tests delayed by "Twilight Zone" births. RISKS Paul> digest 32(16). 2020-07-30. https://catless.ncl.ac.uk/Risks/32/16#subj9 A related issue that came to my attention a couple of years ago is that of America/St_Johns, which until 2011 had a DST transition one minute _after_ midnight, resulting in non-contiguous days on the backward transition. (There are a few other historical examples of such zones.) At least Chile (America/Santiago) and, last I looked, some other South American timezones still have transitions at exactly midnight. -- Andrew.