When I did a marathon, I went Forest Gump on my free time. As in I never stopped running. Hard to say more, on my phone.

Plenty of time to accomplish and even to do a solid time.
Once a week do a long run and try to add an extra 10% distance each following week. Never go beyond 32kms though.
2 times a week do speed based sessions, for example 1km reps on Tuesday and 400m reps Thursday.
Another excellent session is fartlek running. Continuous running but with sturges in pace. My favourite fartlek is Mona fartlek. 90s on/off x2, 60 on/off x4, 30s on/off x4 and 15s on/off x4. That equals 20minutes of running. Add in 10min warm up/down.

Remember a marathon is a long way but with the right consistent training you'll smash it!

I've never run a marathon, i don't really enjoy running. Prefer cycling go on a 25-30 mile ride almost every weekend. Last year i did my first Tough Mudder event. Probably one the most difficult physical feats i've ever done. Had to take a mini coma afterwards lol.

https://www.youtube.com/watch?v=UOawfAhWYyk

I love running but unfortunately you can't do that in the winter here.

I recently ran a 3:04 marathon and I ran 1:22 for the first half of that marathon.
I have now run 9 Park Runs/5km this year with a couple sub 18 minute Park Runs.

Dont take advice off of a gaming forum, thats for sure.