Hi Guys!
I'm afraid I couldn't do the speed tests at the times you said as I was at work until after 10pm and afterwards went out for a 'few' drinks
The next time I have the time to check this out is Sunday as I'm off work. I'll be sure to do a speed test some time between 18:00 & 21:00 and 23:30 & 00:00, most likely half-way between the given times.
Speak soon!
-Daniel