I have never been as happy as this [now].

I’d appreciate it if someone would answer my question. Thanks in advance.
Are the following 2 sentences (A / B) both the same in meaning?

A: I have never been as happy as this [now].

B: Never before [In no other time] in my life have I been as [so] as today.

Is “in my life” absolutely necessary in B?

Assuming you meant to include ‘happy’ in sentence 2:
Never before in my life have I been as happy as I am today.
Then they have the same meaning.

Never before have I been as happy as I am today.
is fine. ‘In my life’ extends the sentence unnecessarily.

--Thank you Beeesneees. You are right in your assumption.

Is “In no other time” OK instead of “Never before”?
If so, which is more common?

One more please. Is “as today” awkward or bad?

It should be ‘as I am today’.
Informally, when speaking it would be acceptable to shorten it to ‘as today’ in many situations.

You could use ‘at no other time’ instead of ‘never before’, but it’s longer and more awkward.

Thank you very much.