Consider the following sample:
Big Picture
I need to subtract 2 Weeks from all dates in column B, only when the Time in Column D matches a particular time(in this example 9PM), regardless of category type in Column C. Ignore Column E, as this is a calculated column (F - D)
Issue
I'm having trouble picturing how I'm going to flag Row 6 and Row 11, if I group by Dates (B2 and B15). Am I mistaken in thinking that each row needs a date for the INDEX/MATCH to work?
I've found the following formula help, but any help or another formula type would be appreciated. I might be overthinking it:
- Subtracting Weeks From a Date - Easy Part
- Index Match Between Times - Not So Easy. Note that I only want the time to match not fall between. I was also thinking of VLOOKUP if match doesn't work, but again, do I need a date on every row?