I logged 64.5 km (40.1 miles) in 7 hours and 43 minutes today. The running time does not include any of the breaks I had.
I started around 6:30 AM and finished about 6:30 PM, so it was a 12-hour day. That was not a coincidence, as that's how much daylight we have at the moment.
At one point I happened to run by a budget sports store, decided to go in for a little shopping, and ended up carrying lots of stuff in my backpack.
I felt good all the way because I stopped to eat and drink something whenever I had a chance to do so. At one point, when I was running in the middle of nowhere and getting slightly dehydrated, I found a little cafe where I drank a nice bottle of San Benedetto The Verde. That really saved me as I didn't carry any water.
It was a bit cloudy and cool, but all in all a great day. 12 ultramarathons done, 40 to go.