I tried to create a smartlist of all tasks completed since yesterday, but I'd like to add a time to it so it only shows things completed after yesterday at 6pm. I don't want to hard code the date because I'd like to be able to use this for status reports. I tried searching on completedAfter: yesterday 6pm but that doesn't show the thing that I just marked completed this morning. How can I do this, please?

Thanks!