Inexplicably, Recognizably, Specifically - What am I?

Question

When you blink, you will always blink twice
No, that doesn't make sense, does it?
You know that without a doubt, the sun rises daily.
But what if it is cloudy and you can't see it?
Look I won't be surprised if this puzzle is solved early.
Unless it's harder than I think it is.
Carefully but quick, if you wait too long you will be late.
Late to answering the riddle that is, it's much more satisfying if you solve it first.

You may wonder if this is all done precisely
But I promise I haven't gotten that good at puzzles yet.
Will it ever make sense to end a sentence with the word the
Maybe, or maybe none of this makes sense. Should it?
Find out the clues, but know they are not all the same,
Or they could all be alike, or they could not be, who knows?
That was ironic to say, the person making the puzzle knows, always.
Although maybe it's not ironic, it could just be by chance.

The prior blocks may seem weird, but the clues are unfailing.
Ahh, but I could be sneaky and make them useless.
Ends and solutions of puzzles are fun, if they're not repetitive.
If you pay attention this particular solution should not be hard.
Are you aware of what's important or not
Punctuation may help, it may not, who knows?
Hints are hard to come by, but often hide among letters.
The only thing I can tell you for sure, is that only certain things are helpful

So. Simple enough right? Tell me what I am.

Hint:

A special day relatively changes me, yet I stay the same.

Answer 1

To start:

The first word of each line that is not in italics gives

'When you look carefully you will find that the ends are hints'

Now I'm a bit stuck, but

The ends are (assuming still non italics)

Twice, daily, early, late
Precisely, the, same, always
Unfailing, repetitive, not, letters

After being told the answer, here is what that means:

It is a riddle:

Twice daily. Early. Late.
Two 12 hours per day, one set starts early in the morning the other late at night
Precisely the same, always.
Always 12 months a year, 24 hours a day
Unfailing. Repetitive. Not letters.
Always 12 months a year, every year, and not letters means it's a number - 12

We also get the punctuation for this from the last words in each line.

Edit/Answer/Explanation from OP:

The answer I was going for is the number 12. While things like sun/year seem to fit, I was deliberate in hinting at the number 12. Important hints that would tip you off to that include the 3 words in the title are all 12 letters long. The day that "relatively changes it" is daylight savings, this 12th of March. The hint not letters was to indicate I wanted a number.