An altered Alan Parrish question

I was wondering around on Puzzling when I saw this question posted three days ago.
It is a great puzzle and it reminded me me about another puzzle a saw a long time ago. I’m using Keelhaul question to post this version (if that’s ok with the community):

Two stereotypical british gentlemen that don’t know each other engage in this unusual conversation on a sunny summer day (it’s almost as if they were a setup for a puzzle):

Gentleman A – Hello sir, I’ll have you know that next month, I’ll turn 49.
Gentleman B – What a coincidence, next month is my birthday too, though I’ll only turn 41. Maybe we share the same birthday?
Gentleman A – Well, I’m afraid this is impossible. Anyway, I must go – Good day, sir.
Gentleman B – Good day to you, and God save the King!

What year is it?

Can you spot the differences and solve this version?