On Sun 24 Dec 2023 at 23:05:53 (+0000), Albretch Mueller wrote: > On 12/18/23, Max Nikulin <maniku...@gmail.com> wrote: > > Timestamp format you have chosen is ambiguous. > > > > TZ=Europe/Berlin date -d '@1698539400' '+%Y%m%d%H%M%S' > > 20231029023000 > > > > TZ=Europe/Berlin date -d '@1698543000' '+%Y%m%d%H%M%S' > > 20231029023000 > > > > You had issues with setting time and timezone, so '+%s' may give > > incorrect results. > > Hmm! and one hour difference is not detected, because of the way is > being parsed. Why would that happen?
Spring forward and fall back—the clocks change, skipping an hour in spring and repeating an hour in autumn (Northern hemisphere). > Why would %S be in the range > second (00..60), instead of (00..59)?: Leap seconds—see the example already in the thread: https://lists.debian.org/debian-user/2023/12/msg00976.html > seks00=1698539400; TZ=Europe/Berlin date -d '@1698539400' '+%Y%m%d%H%M%S' > > seks02=1698543000; TZ=Europe/Berlin date -d '@1698543000' '+%Y%m%d%H%M%S' > > diff_seks=$(( seks02 - seks00 )) > echo "// __ \$diff_seks: |$diff_seks|" > > https://man7.org/linux/man-pages/man1/date.1.html > %Y year > %m month (01..12) > %d day of month (e.g., 01) > %H hour (00..23) > %M minute (00..59) > %S second (00..60) Cheers, David.
