Nope, it always happens instantaneously. As you can see here, another bounty was awarded to one of your answers today at 03:10:00 UTC: and it immediately showed in your reputation history: In the case you described, the OP was simply misinformed, I guess.


Notifications for the end-of-bounty / beginning-of-grace-period are now working once more.


This was there by mistake and is gone now. I guess this is status-completed in that I did change the way it's displayed but as you say, there is room for improvement in how we do these things.

Only top voted, non community-wiki answers of a minimum length are eligible