I stumbled across a curious problem. A colleague switched her weekly format courses to Spanish. However, the names of the months remain in English. Here is an example:
31 de December - 6 de January
7 de January - 13 de January
When I tried several other languages the same thing happened. Everything was translated except for the months (basically anywhere where dates are used, e.g. due dates for assignments etc.). I was able to reproduce this on a second Moodle installation.
I am using Moodle 2.7.2+ (Build: 20141010).
I'd appreciate any help you could offer.