Is the Study Time in Stats Tab of Memrise Group can be more than 30 days?

My courses for students are mostly longer than 30 days.

I do not really care about the Study time or the Points they get in 30 days.

However, just to be sure, Are the “Words learned” and “Words healthy in LTM” counted from the day students begin to learn the course to date or just in 30 days?

Thanks in advanced.

I don’t think that there is anything you can do about this, which sucks, but I don’t do memrise groups, so I could be wrong…