Hi Stim ,
Let's call it a draw .......
Jeez, I've sung Sunny afternoon loads and loads of time over the last 40 odd years - "Sunday" was a Senior moment.
Secondly, though the Original tune / song direct Russian translation ,might well be "Moscow nights" Kenny Ball (as I referred to earlier) released "Midnight in Moscow" in 1961.

Highland man - I've had another think re:- First Time....and I think you're technically correct ythough I feel the minor is a strong influence.

Cheers
Betsy