No, but I don't care. There are some languages that are similar to languages I already know (e.g. Russian to Slovene, or Danish to English and German), some are different (Chinese, Arabic), so they will inevitably take a long time... But I'm not motivated by knowing languages, that is not my goal, learning languages is more important.

In any case, I don't think that the amount of time spent learning matters much, immersion is what is really important. If I ever go somewhere where I'm forced to speak a language for 2 weeks or so, I will learn much more than 6 months studying alone.