You can also use a Scanner which defaults to splitting on spaces:-You cannot put things into a List so each is in its own array. Not unless you write something likeAnd I am sure that isn't what you want. You do not have times; you have Strings with four digits and a : which is something different. You can probably use those Strings for the constructor of a time class, but they are not times at present.
Why do you need to use regular expressions and split()? A Scanner already uses regular expressions behind the scenes. Work out what regular expression it uses (hint: it has a method which shows the regular expression in use at present).