Impurr_fectionist 1m views does not equate 1m people. It's enough for someone to clicks your novel, and a view is counted. As @Gourmet_DAO said, there are cases where people get it in 2 moths time, if they skyrocket from the start. I know a guy who did this in around 2.5 months, and he has a good ranking as well as became contracted very early. He also releases at least 7 chapters a week? Or perhaps more than that.
It is possible to gain such views rather quickly (but mostly for contracted novels). In case of not contracted novels, I'd say 5 months is very good too (in other words 200k views a month, that is not little by all means). A year is... people read it sure, but the interest is not that great basically. As he mentioned, it will depend on the story, your ability to churn out chapters like crazy and if you are contracted or not.