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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25 Responses to “Display Alerts in Dashboards to Grab User Attention [Quick Tip]”

  1. Alex Kerin says:

    I prefer the red,grey,light grey,black icon set. I've also used in-cell pie charts from Fabrice's Sparklines for Excel as an alert which could also provide another piece of information.

  2. Alex Kerin says:

    I prefer the red,grey,light grey,black icon set. I've also used in-cell pie charts from Fabrice's Sparklines for Excel as an alert which can also provide another piece of information.

    For Excel 2007, your formula should do the same as the Excel 2003 version, so that non-alert rows are blank - if they are 0, the unnecessary green icon will show

  3. Rohit1409 says:

    Hi Chandoo,

    Nice Post !! just to add something for EXL 2003, we can also 4 Ifs and link to the alert data

    For Ex: If we have alert data in Cell A2 and want to split in 4 orders namely <25%, 25-50%, 50-75% and 75%< then we can following formula and put fonts as you have suggested :

    =IF(A2<0.25,CHAR(153),IF(A2<=0.5,CHAR(155),IF(A2=0.76,CHAR(152)))))

    And then using Conditional Formating we can dashboard reflected on different COLOURS as per their respective alert.

    Best Regards
    Rohit1409

  4. Rohit1409 says:

    Hi Chandoo,

    Nice Post !!! just to add something for EXL 2003, we can also 4 Ifs and link to the alert data

    For Ex: If we have alert data in Cell A2 and want to split in 4 orders namely <25%, 25-50%, 50-75% and 75%< then we can following formula and put fonts as you have suggested :

    =IF(A2<0.25,CHAR(153),IF(A2<=0.5,CHAR(155),IF(A2=0.76,CHAR(152)))))

    And then using Conditional Formating we can dashboard reflected on different COLOURS as per their respective alert.

    Best Regards
    Rohit1409

  5. Rohit1409 says:

    The Complete formula [Don't Know how it got cut ]

    =IF(A2<0.25,CHAR(153),IF(A2<=0.5,CHAR(155),IF(A2=0.76,CHAR(152)))))

    PS : Use in single line [I have split it to avoid cuts 😉 ]

  6. Rohit1409 says:

    Hi Chandoo..

    why it is not displaying the complete formula..

    anyways here is the balance

    "=IF(A2<0.25,CHAR(153), IF(A2<=0.5,CHAR(155), IF(A2=0.76,CHAR(152)))))"

  7. Chandoo says:

    @Rohit... your formulas are fine. Just that the width of comment area is fixed and hence my website is cropping it at 640pixels. I just edited your formula and added few white spaces so that it wraps nicely.

    Very good idea btw.. kudos!

  8. Tom says:

    Hi,
    Maybe just go for 'bold' ; 'underline' or 'italic' to draw the users attention? Those methods (if those can be called methods) are used cross media type (books, journals, blogs, billboards, ...) to guide the readers eye to valuable information.
    Just a basic thought

  9. Chandoo says:

    @Tom.. good idea..

  10. [...] has a very nice writeup on how to add such alerts to dashboard sheets. Possibly related posts: (automatically generated)Divide your data set into workbooksHow to enforce [...]

  11. Ramesh Panakkal says:

    Hi Chandoo,

    You certainly grabbed my attention! although I wasn't sure what my brother (Suresh) and cousin (Shyam) were doing right, and I was doing wrong? 😉

    I love your blog btw - Many thanks for all your hard work in unravelling the secrets and mysteries of Excel!

    Best regards
    Ramesh

  12. Jeff Whitesel says:

    I thought I saw an advertisment for a book about learning excel called excel himalaya or something. It cost about 35.00 us money but seemed to have the things I need to have my admin assistant to start to use. I was hoping to start with this book and then send her to school if she shows some interest and aptitude. Any help on this would be appreciated. Thanks

    Great web site and information!!!!

  13. [...] There are lots of numbers in this dashboard. I would suggest adding few more visualizations like showing indicators or applying conditional formatting or replacing a table with a chart. This would reduce the [...]

  14. [...] is the same technique as alert icons in dashboard. Just that I also showed green [...]

  15. [...] is the same technique as alert icons in dashboard. Just that I also showed green [...]

  16. RROBBITT says:

    Hi Chandoo
    Firstly thanks for all the cool tips on how to use Excel better.

    I am new to the site and have a question which you may be able to assist with but dont know if these comment boxes are the best way of asking ?

    I am looking at assets and trying to calculate the depreciation total by taking a year (say 2010) adding the expected life of the asset (say 10 years) then comparing that to a future date (say 2015) using an IF statement. The calculation in normal is - IF((year in col B (2010) plus 10years)>year 2015, add a years depreciation, otherwise leave blank). The converted date value does not appear able to add 10 years in order to compare it to 2015. Am I missing something ?

  17. Rocky says:

    I use the “IF” Statement in conjunction with Conditional Formatting in MS Excel to give verbiage to alert one of a required action, dependant on a review date. This makes a visual stimulus, plus it clues one as to what the conditional format is trying to warn you about and what follow-up actions are required.

  18. Wow, I'm really impressed with dashboards. I had no idea this stuff was even possible with excel. I'd like to offer an interactive dashboard to my customers, showing analytics of their data. I have a .pdf file with the datapoints. I'd like them to enter the data on my website, and be able to see their data. Is something like that possible.

  19. Adam G says:

    Hi Chandoo,

    I've recently purchased the package for both templates.

    In the portfolio dashboard,under the calculations worksheet, I'm attempting to change the date range in the gantt chart to show only the range of the project that starts in late 2013.  How do I do this?

    Thanks
    Adam 

  20. [...] is the same technique as alert icons in dashboard. Just that I also showed green [...]

  21. Bianca says:

    Hi Chandoo,
    I'm new at Excel Dashboard and found your blog really useful and helpful! It's very nice of you that you dedicate your time to do this.
    Could you please explain how can I use Alerts based on dates on a Dashboar?
    For example, if a target date is coming closer to the actual date, the alert is yellow or red.
    I'd really appreciate some help!
    Thank you

  22. Marco says:

    Where can I download the file Excel of Averall Statistics ???
    Thanks a lot.

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