Building a simple timer using Excel VBA to track my Rubik’s cube solving speed [case study]

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Today, lets learn how to make a simple timer app using Excel. First some background…,

Rubik's CubeRecently, I learned how to solve Rubik’s cube from my nephew. As a budding cuber, I wanted to track my progress. Initially I used the stopwatch in my iPhone. But it wont let me track previous times. So I thought, “Well, I can use Excel for this”.

So I made a small timer app using Excel. Its quite minimalistic. It has a single button. I press it and it tracks the start time (date & time stamp). If I press the button again, it records the duration.

This way, I can see my progress over next few weeks and may be plot the trend.

Demo of the Excel VBA timer

Here is a short demo. This is what we will be building.

Building a simple timer using Excel VBA to track time - demo

Tutorial to make a timer in Excel

To make a timer app in Excel, first we need to understand the logic for this. If VBA apps can be defined on a scale of 1 to 10 (1 being easiest to develop and 10 being most complex), our timer app can be classified as 1.5. It is really simple. But nevertheless, it is a good idea to list down various ingredients and basic logic to follow.

So we need,

  • A table to store the time stamps & durations
  • A button (simple text box will do) to start & stop the timer

Set up the timer worksheet

In a blank worksheet, make space for a 2 column table. Type Time stamp & Duration as column headings and make a table from these (CTRL+T to insert the table)

Note: For the macro to work, you do not need a table. Any 2 column range will do. A table makes our timer app look sexy.

Also, insert a rounded rectangle and format it to look like a button (from Format Ribbon > Shape Styles, select something slick and pretty)

In a blank cell, type the word “Start”. Name this cell as timer.button.label

Now, click on the rounded rectangle button, go to formula bar and type =timer.button.label

💡 Tip: Yes, you can assign names or cell references to shapes. This way, whatever text is in the cell will be shown inside the shape.

Other names to make:

Although we can write VBA code without creating these names, our code will be readable with these names. So here we go:

  • Select the header “Timestamp” of the table and name it as time.stamp.start
  • Name the table as Durations from Table Design ribbon
  • In a blank cell, write the formula =COUNTA(Durations[Timestamp])
  • This counts how many timestamps are already inserted.
  • Now name this cell as count.of.timestamps

We are done. Lets roll in to VBA.

Writing the VBA code for timer

Open VBE (Visual Basic Editor) and insert a new module in your timer workbook. There write this code.


Sub startStopTimer()
    If Range("timer.button.label") = "Start" Then
        Range("time.stamp.start").Offset(Range("count.of.timestamps") + 1).Value = Now
        Range("timer.button.label") = "Stop"
    Else
        Range("time.stamp.start").Offset(Range("count.of.timestamps"), 1).Value = Now - Range("time.stamp.start").Offset(Range("count.of.timestamps"))
        Range("timer.button.label") = "Start"
    End If
End Sub

Assign this macro to the timer button

Right click on timer button and choose “Assign macro”. Select the startStopTimer sub from the list and click ok.

Now go ahead and test it. Assuming you have used same names as per this post, your timer should work.

How this macro works?

When you click on the timer button, you want one of the 2 things to happen.

  1. You want to start the timer
  2. You want to stop the timer

What you want to do can be checked with this logical check.

Range("timer.button.label") = "Start"

If this is true, then you want to start the timer.
Else, you want to stop the timer.

If you want to start the timer

Then, we need to go to the last row of the table + 1 and insert current time (now) in that cell.

This is done by,

Range("time.stamp.start").Offset(Range("count.of.timestamps") + 1).Value = Now

Once we do that, we need to change timer button’s text to “Stop”.

This is done by,

Range("timer.button.label") = "Stop"

If you want to stop the timer

Then, we need to go to the last row’s 2nd column of the table and print the difference between latest time (now) and starting time (last row, first column value)

This is done by,

Range("time.stamp.start").Offset(Range("count.of.timestamps"), 1).Value = Now - Range("time.stamp.start").Offset(Range("count.of.timestamps"))

Once we do that, we need to change the button text to “Start” by using this code:

Range("timer.button.label") = "Start"

That’s all. Our VBA code is rather simple.

One last step, formatting the duration

If you look at the duration, it could read something like 0.0042354. This is because duration is displayed as a fraction of day. So 0.0042354 means the duration is 0.42% of a day.

Now, wouldn’t it be better if we can show this in minutes and seconds?

To do that, select the entire table column of durations, press CTRL+1

Then, set formatting as custom and type code as [mm]:ss

And you are done!

Download Simple Timer Excel VBA workbook

Click here to download Simple Timer Excel VBA workbook. Play with it. Use it to track your Sudoku, crossword or knitting times. Or even Rubik’s cube times. See what trends and patterns you can uncover.

Do you use Excel for tracking time?

I know many companies use Excel based trackers to keep track of employee time. I personally use time tracking features of Excel for needs like this all the time.

What about you? Do you use Excel time functions like NOW, TODAY and VBA to track progress? What techniques you apply? Please share using comments.

Like tracking? You will love these

If you track things with Excel, you are going to find below tutorials very useful.

Note: Rubik’s cube image by Booyabazooka thru Wikimedia

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17 Responses to “Budget vs. Actual Profit Loss Report using Pivot Tables”

  1. Dau says:

    Good Work, Yogesh & Chandoo! Thanks.

  2. Abdul Kader says:

    Hi everybody,
    first sorry I am late to say something about this topic;actually I was waiting last part
    second I am not accountant I am an Engineer
    third """"Very Important""" the idea is not about Loss but I am sure it is profit
    Based on third it shows:
    1- How to use EXCEL
    2- How to use pivot TABLES
    3- How to collect and arrange DATA
    4- How to make reports

    Many Thanks

  3. UB says:

    Hi Yogesh and Chandoo,

    Thank you for sharing your knowledge!
    You guys are great!

  4. Alejandro says:

    thanks chandoo and yogesh, thanks for you lessons, are great!....i have a idea for a budget. I try to do it..... thanks for all

  5. SAUL ESPINOZA says:

    Thanks a lot for sharing the most powerful tool worldwide "knowledge"
    Warm greetings from Peru

  6. juanito says:

    Hi -
    This is a really great article because it's a simple and common thing you'd want to do with a pivot table but not at all obvious how to do it! So - muchas gracias to Chandoo and Yogesh!
    One thing - I couldn't get past the group error in the sample file. I would click on ungroup but it didn't seem to have any effect. I'd appreciate it if anybody has any pointers here.

    -Juanito

  7. Adam says:

    Hi Chandoo

    I am also having the group error. Can't seem to ungroup? Appreciate if you explain further on the steps required in order to get to calculated items.

    Many thanks and keep up the great work.

    Cheers
    Adam

  8. Catherine says:

    Hi Chandoo,

    I'm struggling resolving the problem depicted below:
    I have a set of data, with (among others) a "Region" field (can be APJ, EMEA, or AMS), and a "Country" field.
    Unfortunately, I need to group data by the following 4 Regions: APeJ, Japan, EMEA and AMS.

    I first tried to make a pivot with Region and Country in the rows (or columns), and then group Country data as per the above.
    Alas, as soon as I have a new Country that appear in my data set, my groupings are broken, and I have to redo the job of ungrouping, grouping etc.

    I thought I could try to use calculated item, by adding first a new column to my dataset concatenating Region_Country, and create an "APeJ" calculated item that would sum all the "APJ_*" and substract the "APJ_Japan", but again, no clue, as I can't find a way to use any wild card in those formulas.

    Given that I already found extremely helpful tips and tricks in your site that helped me manage that bunch of data, I'm pretty sure you'll have a bright idea on how I can solve that one!

    Thanks in advance for your lights!

    • Chandoo says:

      Hi Catherine...

      In such cases, I advice using an additional column in the data itself. You can set-up a grouping table else where with country in first column, region in second column. And then in the data, you can add an extra column and use VLOOKUP to fetch the region based on the country.

      Then feed this entire data (with extra column) to pivot table and use the extra column to group the data.

      • Catherine says:

        Hi Chandoo,

        Thank you for your prompt answer.
        I finally came to the same conclusion - after a rest 🙂 . I was probably too tired Friday evening (it was rather late), having spent hours in manipulating all my surveys data so as to pull rolling averages, make nice graphs and so on, and was trying to find a complex solution when there was a simple one.

        Thanks again,
        Catherine

  9. Tzu says:

    Hey,

    Great post!

    I for example have different database structure with the following fields :

    Date, Expense, Income, Sum (Income - Expense), Category (Sales, Cost of Goods and etc).

    Creating a P&L report for the whole year works great. Including gross margin % and etc.

    Though, creating P&L report by QTR/Month is becoming impossible since i get the following error : “This PivotTable report field is grouped. You cannot add calculated item to grouped filed.”

    Is there a solution for this kind of problem?
     

  10. klumsyboy says:

    Like Adam and Juanito, I also cannot ungroup.

    Would appreciate it if you can add a few more lines and a screenshot or two on where to put the mouse cursor to ungroup. 

  11. klumsyboy says:

    Hi,  I have figured out the ungrouping problem. One of the earlier steps was to group by month, if you pull the month back down to the column then right click and then select ungroup, then pull the month back up so you end up with just data source and budget/actual as the headings, then you can continue on.

  12. Kent Lau says:

    To solve the ungroup problem, my method is:
    Copy the "data" sheet to a whole new Excel workbook
    and directly work on Part 6.

    And since it is a fresh copy, Excel don't show me the "can't ungroup" problem. Hope this help.

    Thank you Yogesh for this wonderful tutorial.

    Kent, Malaysia

  13. felipe says:

    Just when i thought pivots were awesome i learn about inserting the calculated fields and that makes them more awesome. chandoo where have you been all my life.

  14. barrierone says:

    Hello - your P&L pivot version has really impressed my boss and would like to use it. I have applied it for a actual vs budget vs forecast model I have created. One problem. In your variance above the operating profit percent % variance shows 33.8% but I want it to show (0.01) point or the true diff from prior budget.

    I know I can add calculation to the side but boss would like to see it in pivot table.

    Please help
    Thanks

  15. barrierone says:

    I have a further query which may solve my above dilemma. Is it possible to add a column that calculates percent increase. So in the example above a new column would be added to show variance %.

    Any help would be appreciated.

    Thanks