Some of the footage appears in other videos, so it's probably accumulated (even though it has a date, it wasn't done in a day). So overall just that short 4mins 30sec or so of video would have taken the span of a few weeks to film. Lots of locations, different times of day etc that you can pick-up watching it. Take a good solid week of editing, maybe more to put it together as well.
Ok for a hobbyist type, not so good for a budget
Would love to do something similar with SAU Nats it would blow costs out by 3x to have a paid production crew to get that level/amount of varying footage into 3 days as well as there would need to be 4-5 camera men with quite a varying array of rigs etc.
Great videos in this thread though. Good fun to watch.