bug#80676: date does not recognize Chamorro Standard Time time zone

DOMINIQUE TRONCHE via GNU coreutils Bug Reports <[email protected]> Wed, 25 Mar 2026 14:36:50 +0000

Newsgroups	gmane.comp.gnu.core-utils.bugs
Message-ID	<PAWPR02MB99492F0B9EC794423839718B8C49A@PAWPR02MB9949.eurprd02.prod.outlook.com>

Hello,
We encountered a bug using the program date when the time zone is configured with Chamorro Standard Time (Pacific/Guam or Pacific/Saipan)
The command date itself displays the date properly:
#ln -s /usr/share/zoneinfo/Pacific/Guam /etc/localtime
#date
Thu Mar 26 00:30:09 ChST 2026

However,  when used with -d option, an error message is returned
# date -d "$(date)" '+%s'
date: invalid date 'Thu Mar 26 00:30:16 ChST 2026'

Regards
Dominique Tronche