[Bug 2148249] Re: date: strftime ignores flags and widths on %N (nanoseconds)

Daniel Tang 2148249 at bugs.launchpad.net
Sun Apr 26 02:08:35 UTC 2026


*** This bug is a duplicate of bug 2150342 ***
    https://bugs.launchpad.net/bugs/2150342

** This bug has been marked a duplicate of bug 2150342
   date: width prefix in %N format specifier is ignored ( %3N, %6N always output full 9 nanosecond digits)

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Title:
  date: strftime ignores flags and widths on %N (nanoseconds)

Status in rust-coreutils package in Ubuntu:
  New

Bug description:
  I initially observed this in systemd's test suite. Reproducer:

  $ date --version
  date (uutils coreutils) 0.7.0
  $ date +%s%6N
  1776110477753528961
  $ gnudate +%s%6N
  1776110490234202

  Note the different widths, i.e. uutils date ignores the '6' in the
  format specifier.

  Upstream bug https://github.com/uutils/coreutils/issues/11658

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