Let’s try something different. I will share a data analytics challenge here. Post your solutions in the comments.
Our first challenge involves Employee Data Analysis. You can score maximum of 35 points.
Imagine you have employee data in this “staff” table (in Excel / Power BI / SQL / Python or whatever tool you fancy)
Download sample data file (it has all the 28 employees) or use the below CSV.
Emp ID Name Reports to
TO-0002 Jim Halpert TO-0007
TO-0004 Pam Beesly TO-0015
TO-0007 Michael Scott TO-0067
TO-0009 Erin Hannon TO-0004
TO-0010 Jan Levinson TO-0067
TO-0013 Karen Filippelli TO-0076
TO-0015 Dwight Schrute TO-0007
TO-0018 Andy Bernard TO-0002
TO-0021 Cathy Simms TO-0002
TO-0024 Kevin Malone TO-0035
TO-0028 Creed Bratton TO-0007
TO-0030 Toby Flenderson TO-0067
TO-0031 Kelly Kapoor TO-0028
TO-0033 Robert California TO-0067
TO-0035 Angela Martin TO-0007
TO-0039 Stanley Hudson TO-0007
TO-0043 Ryan Howard TO-0031
TO-0046 Oscar Martinez TO-0035
TO-0050 Meredith Palmer TO-0028
TO-0051 Gabe Lewis TO-0072
TO-0055 Phyllis Vance TO-0030
TO-0059 Roy Anderson TO-0004
TO-0063 Nellie Bertram TO-0030
TO-0066 Darryl Philbin TO-0039
TO-0067 David Wallace TO-0072
TO-0068 Pete Miller TO-0015
TO-0072 Jo Bennet
TO-0076 Todd Parker TO-0002
1. How many people are directly reporting to my boss? (5pts)
The first question is simple. For a given employee ID (say TO-0021, Cathy Simms), how many people are directly reporting to their boss (TO-0002, Jim Halpert)? The answer should be 3.
Write the necessary Excel formula / DAX / Power Query / SQL or Python code to find the answer.
2. Who is my boss’s boss? (10pts)
We are going to level up. For a given employee ID (say TO-0021, Cathy Simms), find out their boss’s boss. The answer should be TO-0007, Michael Scott.
3. What is my reporting chain? (Score=20pts)
For a given employee (say TO-0021, Cathy Simms), print their entire reporting chain, delimited by the symbol ->.
Expected Answer is:
Cathy->Jim->Michael->David->Jo
Note: You may assume a maximum depth of 7 nodes if that helps.
Download Sample File
Grab the sample data file (Excel format) here. Use it to solve the problems. Alternatively, I have pasted the data above. Copy it and paste it in Python or SQL.
Post your answers below.
Leave a comment with your solutions / approach. All the best
Want more?
Check out my Excel Homework Tag page for more challenges and problems.
13 Responses to “Convert fractional Excel time to hours & minutes [Quick tip]”
Hi Purna..
Again a great tip.. Its a great way to convert Fractional Time..
By the way.. Excel has two great and rarely used formula..
=DOLLARFR(7.8,60) and =DOLLARDE(7.48,60)
basically US Account person uses those to convert some currency denomination.. and we can use it to convert Year(i.e 3.11 Year = 3 year 11 month) and Week(6.5 week = 6 week 5 days), in the same manner...
This doesn't work for me. When applying the custom format of [h]:mm to 7.8 I get 187:12
Any ideas why?
@Jason
7.8 in Excel talk means 7.8 days
=7.8*24
=187.2 Hrs
=187 Hrs 12 Mins
If you follow Chandoo's instructions you will see that he divides the 7.8 by 24 to get it to a fraction of a day
Simple, assuming the fractional time is in cell A1,
Use below steps to convert it to hours & minutes:
1. In the target cell, write =A1/24
2. Select the target cell and press CTRL+1 to format it (you can also right click and select format cells)
3. Select Custom from “Number” tab and enter the code [h]:mm
4. Done!
Hi, sorry to point this out but Column C Header is misspelt 'Hours Palyed'
good one
So how do I go the other way and get hours and minutes to fractional time?
If you have 7.5 in cell A1,
- Use int(A1) to get the hours.
- Use mod(A1,1)*60 to get minutes.
If you have 7:30 (formatted as time) in A1
- Use hours(a1) to get hours
- Use minutes(a1) to get minutes.
I had the same issue. You can solve it by changing the format as described above:
Right click cell > Format Cells > (In Number tab) > Custom > Then enter the code [h]:mm
([hh]:mm and [hhh]:mm are nice too if you want to show leading zeros)
Thanks guys, these are the tips I'm looking for.
...dividing the number of minutes elapsed by the percent change is my task - "int" is the key this time
It doesnt work for greater than 24 hours
It returns 1:30 for 25.5 hours. It should have returned 25:30
Ideally I would right function as
=QUOTIENT(A1,1)&":"&MOD(A1,1)*60
Sorry, replied to wrong comment....
----
I had the same issue. You can solve it by changing the format as described above:
Right click cell > Format Cells > (In Number tab) > Custom > Then enter the code [h]:mm
([hh]:mm and [hhh]:mm are nice too if you want to show leading zeros)
Clever use of MOD here to extract the decimal part of a number. Divide a number containing a decimal by 1 and return the remainder. Humm. Very clever.
Thanks very much, extremely useful !