I just answered your question, did you read my reply? you make no indication of what you're actually having trouble with.
a phase shift does not have any meaning in the time domain without the frequency of the signal... for example, a 60 degree phase shift on a 1KHz signal is a totally different amount of time than a 60 degree phase shift on a 1MHz signal. nor does a time delay have any meaning in terms of phase shift without the frequency of the signal. That's why you can't just add the two quantities directly, so you have to convert one of them to the type of the other, by using the simple math I described with the frequency of the signal. if you know the frequency of the signal then it's as simple as what I said before, or you can leave the frequency as a variable and come up with a simple equation for the time delay or phase shift with the same method.