not a minute sooner?

[keannu]

What do you mean by "not a minute sooner"?

-friends
182148 - -You're not dressed yet?
184551 - We're supposed to start having fun
184551 - in 15 minutes!

188254 - And clearly, not a minute sooner.

[JMurray]

What do you mean by "not a minute sooner"?
182148 - -You're not dressed yet?
184551 - We're supposed to start having fun
184551 - in 15 minutes!
188254 - And clearly, not a minute sooner.

keannu.
By saying "clearly, not a minute sooner" he is making the point that he is not enjoying the other people hassling him and so it's obvious that his fun will not be starting early.

not a teacher

[BobK]

What do you mean by "not a minute sooner"?
182148 - -You're not dressed yet?
184551 - We're supposed to start having fun
184551 - in 15 minutes!
188254 - And clearly, not a minute sooner.

keannu.
By saying "clearly, not a minute sooner" he is making the point that he is not enjoying the other people hassling him and so it's obvious that his fun will not be starting early.

not a teacher

Who's hassling whom? Let's put names on the participants:

Tom:' You're not dressed yet?' [He wants to go out and start having fun.] 'We're supposed to start having fun,'
Ricarda: 'In 15 minutes.' ['I'm not late yet; don't hassle me.']
Tom: 'And clearly, not a minute sooner.'

The 'clearly' marks his disgruntlement. Nobody's hassling him. Presumably you've heard it (in your mind's ear) differently.

b

[JMurray]

@BobK: Who's hassling whom?

I can't track down this text online to see how it works. My first assumption was that there are three characters, the first two are hassling the third because he isn't ready yet.
The repetition of 184551 tells us that it is a single line spoken by one character rather than two lines. This seems to be the same system used in keannu's other post asking about dialogue from "Friends":
115782 - Why don't you hire him as an actor?
119018 - You could have him dress up
119018 - and put on skits whenever you want.

So my interpretation on that basis is:

Tom: You're not dressed yet? (hassling Harry)
Dick: We're supposed to start having fun in 15 minutes! (also hassling Harry)
Harry: And clearly, not a minute sooner. (feeling hassled)

A two-character possibility:
Tom: You're not dressed yet? We're supposed to start having fun in 15 minutes! (hassling Harry)
Harry: And clearly, not a minute sooner. (feeling hassled)

A variation on BobK's:
Tom: You're not dressed yet?
Harry: We're supposed to start having fun in 15 minutes! (don't hassle me)
Tom: And clearly, not a minute sooner. (anxious)

[5jj]

The problem with the language of some of these programmes is that the meaning and humour sometimes come more from the interplay between the actors, their body language, facial expressions, stress, intonation, timing, etc than from the words themselves. The actual printed words may often lack humour and, sometimes, meaning.