In this session, you will learn about the DATEDIF function in Excel, which allows you to find the difference between two dates. The video delves into how to use this function to calculate differences not just in days, but also in months or years. It contrasts this function with the simple subtraction of two dates and explains the syntax required to use DATEDIF effectively.

What will you learn

  • How to find the difference between two dates using simple subtraction.
  • Understanding the DATEDIF function and its syntax.
  • Using DATEDIF to find the difference in years, months, and days.
  • The importance of specifying the correct unit in the DATEDIF function.
  • Common pitfalls when using DATEDIF and how to avoid them.
  • Interpreting numerical outputs when working with date formats.
  • Why Excel does not provide auto-suggestions for the DATEDIF function.

Takeaway notes

  • Simple Subtraction: Subtracting two dates directly in Excel gives the difference in days.
  • DATEDIF Function: Use DATEDIF to get differences in more specific units like years (Y), months (M), and days (D).
  • Syntax: The syntax for DATEDIF is =DATEDIF(start_date, end_date, unit). Units can be Y, M, or D.
  • No Auto-suggest: Excel does not provide auto-suggestions for DATEDIF, so you need to know the syntax and use it precisely.
  • Date Formats: Be careful with date formats; ensure they are properly set to avoid errors.
  • Function Output: Familiarize yourself with interpreting the output numbers to avoid misinterpretations.

Practice questions

  1. What is the result of subtracting 01-01-2021 from 01-01-2022 in Excel?
  2. How do you use the DATEDIF function to find the difference in months between 02-15-2020 and 05-15-2021?
  3. Write the DATEDIF function to find the difference in complete years between 12-25-2018 and 12-25-2021.
  4. Why might you get a number when you subtract two dates directly in Excel?
  5. What will the DATEDIF function return if the start date is 03-01-2019 and the end date is 03-01-2020 with the unit D?
  6. How can you modify the DATEDIF function to find the difference in complete months?
  7. Explain why DATEDIF does not show auto-suggestions in Excel.
  8. What would be the output of =DATEDIF("01-01-2010", "01-01-2020", "Y")?
  9. Calculate the difference in days using the DATEDIF function for dates 02-28-2021 and 03-01-2022.
  10. What does the unit M signify in the DATEDIF function?
  11. If you want to find the difference in days excluding years and months, which unit would you use in the DATEDIF function?
  12. Provide an example where the DATEDIF function is useful in a business scenario.
  13. How do you ensure your date formats are correct before using functions like DATEDIF?
  14. What is one common error users encounter when using the DATEDIF function, and how can it be fixed?
  15. Write the DATEDIF function to determine the number of days between 06-15-2020 and 09-25-2021.

Mark Lesson Complete (Discovering the DATEDIF Function in Excel)