Hello and a a possible bug in i18n

["Mauricio López" <mlopezqc gmail com>]

I recently join to the list and I hope to make good contributions to the community. But I've had a doubt since a long time and is about the i18n in spanish. In Gnome, the clock applet only shows 12 hours format if the language supports it, and in the locales isn't specified that spanish language supports it. Actually in real life, a lot of people that speak spanish uses the 12 hour format and uses the same strings 
A.M and P.M. 

In my Linux box I hacked  the  file  /usr/share/i18n/locales/es_ES (on an Ubuntu system), copied some things from /usr/share/i18n/locales/en_US and after regenereted locales. Voila! I had 12 hour support. Of course I did it 'cause I have some technical knowledge and a bit of luck, but for non technical users it may be really annoying to use 24 hour format when they are used to 12 hour format.

Is it possible to change this situation?

Regards

Mauricio