In date ranges, tonight should imply the date (today's date), not just the time (8pm)

[whipermr5]

E.g. Today is 28 Oct, type in "tonight to tomorrow morning"
Output: Thu Oct 29 20:00:00 UTC 2015, Thu Oct 29 08:00:00 UTC 2015
Expected: Wed Oct 28 20:00:00 UTC 2015, Thu Oct 29 08:00:00 UTC 2015

Same problem for "this morning", "this afternoon", "this evening": no different from "morning", "afternoon", "evening", when in fact "this" implies today's date.