I would say honestly the process for me is hard to enumerate because a large part is often the creative process that happens while I'm doing other things. While I'm eating or taking a shower or going through my day I'll go through several potential ideas in my head, then think what I could cover for the idea, is it searchable, if so what would people search to find it, how/why would my video be more valuable to them than the other search results, what exactly will I say etc. For some ideas this part of the process takes just 20-30 minutes, other times I'll be thinking about the best way to convey an idea for an entire day or two.
Then once my idea is ready I sit down with my camera, and start recording. I personally prefer making my videos without a script, and just remembering to say a few key searchable phrases so that when I caption the video later it'll be highly searchable - the videos tend to be planned out but I convey the ideas as if I'm talking to a friend rather than as if I was giving a speech. I feel like this builds a deeper connection with the viewer, but at the same time I've considered re-implenting scripts just so I can get super meta with SEO and to save me time captioning later.
Recording takes anywhere from 10-15 minutes if I get it the first try to 30-40 minutes if I have to do retakes.
Then it's about 5~ ish minutes to copy the file from my camera.
Then probably just 20-30 minutes of editing most of which is just spent listening to/watching the video to make sure there are no mistakes and cutting out any on camera derpy moments. Otherwise editing for me is just moving the intro to the right place in the video, showing my subscribe button on screen at the right moment in time with me pointing to it, and adding a next video for them to watch at the end. I imagine editing time will go up for me significantly this coming week though since I ordered myself some lighting and want to take more care getting the videos to look professional.
~5-10 minutes for the video to compress.
Then it's anywhere from 30 minutes to 2 hours to upload depending on the length of the video and if my internet speed is being bogged down at all by other things - though I don't really count this time since there's no work from me being done.
15-20 minutes to quickly do some tag research and then tag, title and get the description made properly, sometimes a bit longer, sometimes shorter if I already did my tag research earlier.
~5-10 minutes max to make a thumbnail since currently I have a template for my thumbnails and just change/move the text, add a picture of my face from the video, and add some free stock image related to the video in the background.
Then that arduous ~30 minutes that feels like a week transcribing the video and adding captions.
Then another 2-5 minutes to share the video on Twitter and Tumblr.
So between 2 and 4.5 hours depending on the video, not including the time to think of the initial idea and how I'm going to do it.
Overall I've cut the process down quite a bit since when I first started. My first videos a month and a half ago I had no camera and so was having to do a lot more editing to show text on screen and stuff so that the viewers wouldn't be bored, I was also ranting on a bit long without being clear and concise enough on the topics I covered, meaning 15-20 minute long videos so longer recording, editing, compressing, uploading, etc. That was time I can now spend better on SEO instead.