Browsing Welsh translation

Translators: this is the preferred format for expressing 12 hour time

Translators: Some languages (Baltic, Slavic, Greek, and some more)
* need different grammatical forms of month names depending on whether
* they are standalone or in a complete date context, with the day
* number.  Some other languages may prefer starting with uppercase when
* they are standalone and with lowercase when they are in a complete
* date context.  Here are full month names in a form appropriate when
* they are used standalone.  If your system is Linux with the glibc
* version 2.27 (released Feb 1, 2018) or newer or if it is from the BSD
* family (which includes OS X) then you can refer to the date command
* line utility and see what the command `date +%OB' produces.  Also in
* the latest Linux the command `locale alt_mon' in your native locale
* produces a complete list of month names almost ready to copy and
* paste here.  Note that in most of the languages (western European,
* non-European) there is no difference between the standalone and
* complete date form.