My understanding is the most reputation one can gain in one day from votes is 200. But, through accepted answers, they can get another 15 per accepted answer. So, technically, there is no limit.
Is there any way to find the record (so far) for most reputation gained by one user in one day, not counting bounties (or, a separate record where bounties are included would also be interesting)?
I noticed Brian M. Scott achieved 425 (so 200 on votes plus 15 accepted answers) on June 7, 2012.
Also, if bounties are included, I have seen that Timur had 650 on August 23, 2012.
An update, below Ragib has found a daily total of 749 by Did on August 25, 2012, which included a bounty.