如何在特定时间之前过滤结果

I have a query that grabs results from yesterday's date. What i'd like to do is filter the results more by only returning results anything Pior to 6:30 AM or AFTER 7:15 AM. If the results fall inbetween 6:30 and 7:15 AM I do not care about the result.I have a query that grabs results from yesterda