There's some ICO which announce crowd sale that lasted longer than others. What does it signify?

Following that question, would you consider the duration of the different stages of an ICO sale? (e.g. a long angel round, or a pre-ICO sale that is very short)

Does it make a difference to you?

UPDATE: From the answers so far, many sees it as a case of the ICO team extending the duration of sale. But "extension" is not the only scenario that can happen.

Here are two examples:
1. An ICO ABCD at first announce a sale lasting X days. But when it gets close to the start of the sale, they extend the duration of the sale.
2. An ICO WXYZ announce their sale, and it is a long period (e.g. maybe 1.5 times longer than normal main sale period?)

So if you see these two ICOs, what would you think?


(EDIT: After reading some responses, I edited/updated this post to clarify and present a clearer case.)