Add 1 Week to a Date, which way is preferred?

Question

I am reviewing some code at work and came across an inconsistency in how the code handles adding 1 week to the current time and was wondering if there was any reason why one

Answer 1

The more general, the more useful it will be. If you always add a week, I'd chose the second method. If you have different adds, I'd chose the first one, perhaps replacing days for seconds or even millis if needed.