Translation files

Those are over 2 years old. They apply to a significantly different version of the plugin. Most of the text strings in the plugin have changed since then.

The latest translation files are currently being hosted in a GlotPress system at https://translate.time.ly/projects/timely

I’d assume that once there is a significant core of fully translated language files, these language files will be shipped by default.

If you are interested in helping, you could apply to become a validator at the Time.ly forum located at https://time.ly/forums/forum/translations/ – It is preferred that you’re a native speaker of the language you want to translate, and have a reasonably good grasp of English.