On 2025-08-25 14:15, James Feeney via GNU coreutils Bug Reports wrote:
For anyone inclined to accept my appeal to ISO 8601, the current display format
returned by `date -u`, especially within the USA, is wrong, and that is a bug
that needs to be fixed.
Are you inclined to accept the time format of ISO 8601 for the display of UTC -
or no?
We should not change the behavior of plain 'date -u' based on any
arguments presented so far in this thread. The current behavior is
longstanding, documented, required by POSIX, and plenty of people
undoubtedly depend on it.
To get 24-hour notation for UTC with 'date', you can run this:
date -u +'%Y-%m-%d %H:%M:%S'
or this:
LC_ALL=C date -u
Either of these work with any POSIX-conforming 'date'. GNU 'date' has
other options (--iso-8601, --rfc-3339) that may be more convenient but
are less portable. This sort of thing should be enough to satisfy the
need here.
