Calculating overlapping date/time for Ambulances for a month

[mpittmanfl]

Hello all,
I'm new here and somewhat of an OK excel user. I am the director over an Ambulance service and I am trying to create a formula showing me how many times 2 or more of my trucks were busy on a call. I have a few different cells, A is the date of occurrence, B Time the call started, C time the truck was available, and D duration of time the truck was out of service. With those data sets, how can I generate a report to show overlapping calls where 2 or more trucks were out of service during the same time period?

[AliGW]

Please add to your workbook the bit in red and bold below:


1. Make sure that your sample data are REPRESENTATIVE of your real data. The use of unrepresentative data is very frustrating and can lead to long delays in reaching a solution.

2. Make sure that your desired results are also shown (mock up the results manually).

3. Make sure that all confidential data is removed or replaced with dummy data first (e.g. names, addresses, E-mails, etc.).

4. Try to avoid using merged cells as they cause lots of problems.

Please pay particular attention to point 2 (above): without an idea of your intended outcomes, it is often very difficult to offer appropriate advice.

[mpittmanfl]

Thank you. What I need to see is how many overlapping calls there were on any given day. I have added the red/bold expected outcomes to the right in columns F and G.


Thank you,
Mike

[JeteMc]

Hello mpittmanfl and Welcome to Excel Forum.
See if the following is useful.
Column E is populated using: =A3+B3<A2+C2
Note that column E could be moved and/or hidden for aesthetic purposes.
The Number of overlapping calls column is populated using: =COUNTIFS(A$2:A$82,F2,E$2:E$82,TRUE)
Note that the rows where an overlap occurs are highlighted.
Let us know if you have any questions.

[kvsrinivasamurthy]

Helper column E is used . In E2 then copied down.

=SUMPRODUCT(($A3:$A$82=$A2)*($B3:$B$82< $C2)*($C3:$C$82> $B2))

In H2 then copied down.

=SUMIF($A$2:$A$82,$G2,$E$2:$E$82)