Here is the data set that I have in 2 Columns :

Column A Column B
1/1/07 0:00 2.05
1/1/07 0:15 2.32
1/1/07 0:30 2.32
1/1/07 0:45 2.32
1/1/07 1:00 2.16

I want to output the min / max value for Column B, with the corresponding value from Column A. If you observe its data collected every 15 mins. I have given a sample data set for 1 hour, but I have the data set for last 3 years. My aim is to come up with minimum and maximum values for each day of the month.

Thanks for your assistance.

Arpit