due to the est. time i have of the true ending being 20-30 hours can there be added timing and breaks (or maybe even sleep lol) because i am thinking of doing it but it might be a bit too long for me in one sitting

After a small discussion we decided that a break of max 10 minutes is allowed between the hollow and aincrad part of the game, any time over these 10 minutes will be counted towards the endtime(please do note where you take the break)