Comment 0 for bug 1858883

After upgrading my Bionic system to Focal, I noticed a significant change in the output of the `date` utility. This could potentially cause regressions for those who are relying on a consistent date format when using `date` in shell scripts.

EXPECTED BEHAVIOR
=================

The date format seen below can be seen on Ubuntu releases from Trusty through Bionic:

$ date -u
Wed Jan 8 21:00:14 UTC 2020

ACTUAL BEHAVIOR
===============

On Focal (and Eoan) the following date format is seen by default:

$ date -u
Wed 08 Jan 2020 09:00:14 PM UTC

Note the differences in zero-padding, whitespace, placement of the year, and the extraneous "PM" (I had expected to see a 24-hour time).

FURTHER DETAILS
===============

This machine was originally on Bionic and has been upgraded to development releases between Bionic and Focal.

$ locale
LANG=en_US.UTF-8
LANGUAGE=
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=