Package: xdaliclock Version: 2.18-6 Severity: minor The man page does not list '-datemode <format>' among the command-line options, though datemode is listed in the resources controllable through a file, presumably also through the -xrm command-line option, which I have not tried.
The -help report implies that only MMDDYY or DDMMYY are valid formats, even though there are, according to the resource entry listing in the man page, four more formats, particulary YYMMDD, the format in the interest of your humble submitter.