Is there any unified platform that would list the deadlines (especially the submission deadlines) for conferences/journals? Ideally I would like to select a few conferences/journals I am interested in publishing to, and the website would give me the list of upcoming deadlines. 

Right now I have to check out each individual conference/journal website, which is pretty tedious and error-prone (all the more so as it is pretty common for deadline to be extended).

I am mostly interested in the field of computer science > machine learning, and English-speaking venues.