On 08/23/2010 18:02, Payk Eggert wrote: > ... For example: > $ TZ=Pacific/Kwajalein date -d 1993-08-20 > date: invalid date `1993-08-20'
> There was no time during the day 1993-08-20, because at midnight Kwajalein > moved the clocks ahead by 24 hours. BTW: This example looks different here: $ TZ=Pacific/Kwajalein date -d 1993-08-20 Sat Aug 21 00:00:00 MHT 1993 $ date --version date (GNU coreutils) 8.5 Packaged by Cygwin (8.5-2) Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Written by David MacKenzie. Why? > Aren't dates fun? Well, imagine such [an ugly but easy] loop thru all days of a year: d='1993-01-01' while [ "${d%%-*}" = "1993" ] do echo $d # loop body d=$( date -d "$d + 1 day" '+%Y-%m-%d' ) # step to next day done Given that there's no valid time like 12:00 with TZ="Pacific/Kwajalein" for Aug 20th, do you think this loop should really fail? With a normal user's perspective, I'd expect `date` to "just do the job" and find the next day after 1993-08-19 ... Have a nice day, Berny
