guilledoc, I did find issues when using the am/pm timeformat in Spanish. I assume you have this timeformat, else I might not have tackled your issue

As I have no access to cssu-devel, I have updated the downloads in the openingspost (I was to lazy to update the version/changelog)
Also notice that the version in cssu-devel is numbered 0.6-1, and the version in the openingspost is already at 0.6.7.


Changes:

• It is no longer possible to reactivate an alarm with past date/time by pressing the icon in the alarmlist
• Made it harder to set a date/time in the past in the alarm edit popup
• Hopefully fixed Spanish am/pm timeformat issue as reported by guilledoc (which also resulted in wrong size of alarmtime font in alarmlist)