Assuming that the values in column A match values in column C EXACTLY (no
microseconds...) you should be able to do in column E:
=IF(ISERROR(MATCH(A2,C:C,0)),"",INDEX(D

,MATCH(A2,C:C,0)))
--
Best Regards,
Luke M
"Tom Langley" <Tom
(E-Mail Removed)> wrote in message
news:74913AD0-08A3-417A-8866-(E-Mail Removed)...
>I have two sets of data with Date/Time. One set has a fixed interval, the
> second is more sporadic. I am trying to combine into these sets into one
> table with the data from one set next to the corresponding data from the
> second set.
>
> For example:
> A B C D
> 4/22/2010 9:00 000 4/22/2010 9:01 777
> 4/22/2010 9:01 111 4/22/2010 9:03 888
> 4/22/2010 9:02 222 4/22/2010 9:06 999
> 4/22/2010 9:03 333
> 4/22/2010 9:04 444
> 4/22/2010 9:05 555
> 4/22/2010 9:06 666
>
> Output:
> A B C
> 4/22/2010 9:00 000
> 4/22/2010 9:01 111 777
> 4/22/2010 9:02 222
> 4/22/2010 9:03 333 888
> 4/22/2010 9:04 444
> 4/22/2010 9:05 555
> 4/22/2010 9:06 666 999
>
> Output in column E would be fine, too. Then I could just copy and paste.
>
> I've tried VLOOKUP and INDEX-MATCH to no avail and I haven't been able to
> find a similar problem/solution in here. Is this possible, or do I need
> to
> use a Macro or something else? Thanks.
>