## Key Takeaway:

- DATEDIF is a useful Excel function for calculating differences between dates, including days, months, and years. By understanding the syntax and how to use the function, you can save time and effort in your Excel data analysis.
- Examples of using DATEDIF include finding the number of days, months, or years between two dates, as well as calculating an individual’s age based on their birthdate. Additionally, DATEDIF can be used to calculate deadlines and timeframes, such as the number of weeks between two dates.
- Challenges associated with DATEDIF include common errors you may encounter, as well as alternative uses of the function beyond years, months, and days. However, with careful attention to detail and troubleshooting techniques, you can effectively utilize DATEDIF in your Excel data analysis.

Are you struggling with calculating the difference between two dates in Excel? Master the powerful DATEDIF formulae with this helpful guide and make your life easier!

## DATEDIF: Understanding Excel’s Date and Time Function

Let’s dive into the wonderful world of **DATEDIF – Excel’s powerful date and time function**! This function is a favorite among Excel users. In this article, we’ll discuss all you need to know about DATEDIF. We’ll look at what it is, how it works and its syntax. Plus, tips to make sure you use it correctly. So, buckle up and let’s turbocharge your Excel date calculations with DATEDIF!

### Getting to know DATEDIF

**DATEDIF** is an Excel function used to calculate the difference between two dates. Its syntax is: `=DATEDIF(start_date, end_date, unit)`

. An example would be: `=DATEDIF("1/1/2020", TODAY(), "y")`

. This will return the number of years since January 1, 2020.

It is important to understand how to format dates for use in Excel and recognize functions like `TODAY()`

, which returns today’s date. **I once used DATEDIF for calculating the length of service for each employee in a company**. It saved me a lot of time as I was able to easily subtract each employee’s hire date from today’s date.

Let’s take a closer look at how to use DATEDIF and its different units for calculating the difference between two dates.

### Syntax Explained: How to use the DATEDIF function

Ready to use the **DATEDIF** function? Start by selecting a blank cell in your worksheet. Then, type “=DATEDIF(” and select the cell containing the start date. Follow with a comma, then select the cell containing the end date. Add one more comma, then type the unit of time you want to compute (in quotes) – like “d” for days or “y” for years.

**DATEDIF** is an efficient way to calculate differences between dates or times. It’s helpful for counting elapsed time in years or months from one date to another. Unfortunately, Excel doesn’t have a help topic on this function. But now’s the perfect time to learn it – it can save a lot of time!

Let’s move on to **‘DATEDIF Examples: Calculating Differences between Dates.’**

## DATEDIF Examples: Calculating Differences between Dates

As an Excel user, I’m always hunting for ways to calculate date differences quickly. That’s where **DATEDIF** helps out! In this article, we’ll be looking at many examples of using the **DATEDIF** formula to calculate the difference between dates. First, let’s see how to get days between two dates with **DATEDIF**. Then, we’ll move on to figuring out how to calculate months between two dates with **DATEDIF**. Lastly, we’ll find out how to get the number of years between two dates with **DATEDIF**. Let’s get started and see how **DATEDIF** can make date calculations so much easier!

### Get the number of days between two dates with DATEDIF

To **Get the Number of Days Between Two Dates with DATEDIF**, there is a four-step process:

- Select an empty cell for the result.
- Type in
**=DATEDIF(start_date,end_date,”d”)**. - Replace
**start_date**and**end_date**with the cell references of your two dates. - Press Enter and the answer appears.

DATEDIF is useful for finding out how many days are between two dates. It calculates the number of days without taking into account months or years. Thus, it helps when you need to know exactly how many days are between two dates without considering leap years.

Knowledge about DATEDIF is necessary for using it. It is useful for **tracking project deadlines, managing employee absences**, and more. For instance, if the design team has to create an advertising campaign from June 1st to September 30th, you can use DATEDIF based on today’s date (August 20th) to compute the remaining 40 days.

**DAYS360** is another aspect of Excel’s DATE function. It only considers 30 days per month irrespective of date range given.

### Calculate Months between Two Dates with DATEDIF

Wanna calculate the months between two dates? Use **DATEDIF**! This handy function can help with project schedules, billing cycles, and finding age in months. Plus, it ignores partial periods, so you don’t get inaccurate results.

To use **DATEDIF**, enter your start date and end date into separate cells. Choose the cell to get the answer and enter “**=DATEDIF(**” followed by the start date cell, a comma, and the end date cell in brackets. Add “, **m**)” at the end to get your result in months. Press Enter and you’re done!

*Pro Tip:* **DATEDIF** rounds down if there’s a fractional part left over after calculation. So, if you have 1 year and 11 months difference between two dates, it’ll only return “1” as the result.

Now you know how to use **DATEDIF** to get the **number of months between two dates – easy peasy!**

### Determine the number of years between two dates using DATEDIF

Calculating the number of years between two dates with DATEDIF is a cinch! Just follow these 5 steps:

- Put the two dates in separate cells in Excel.
- Select a third cell to display the result.
- In the formula bar or the cell, type
**=DATEDIF(start_date,end_date,”y”)**. - Replace “start_date” and “end_date” with the cell names containing your dates.
- Hit enter and voila – you’ll get the number of years in the chosen cell.

This formula **excludes any months or days beyond the year range**. For example, if you use January 1, 2010 and December 31, 2019, the result will be 10 – since both January 1st of both years are counted as full calendar years.

Tip: To calculate partial calendar years, you can use the more exact formula **=YEARFRAC(start_date,end_date)**. This returns a fractional value based on day and month increments between the start and end date ranges.

The next topic we’ll discuss is the multiple uses of **DATEDIF Function**.

## The many uses of DATEDIF Function

Excel is a powerful tool with many formulas. **DATEDIF** is one of the most versatile functions. It can be used to calculate age, time remaining until a deadline and the number of weeks between two dates. And it’s easy to use, as it’s built into Excel.

In this section, I’ll show how to use **DATEDIF**. Let’s explore 3 key applications:

- Calculating Age
- Counting Down to a Deadline
- Determining the Number of Weeks Between Dates

### How to calculate the age from a birthdate using DATEDIF

Want to calculate age using **DATEDIF**? It’s easy! Follow these 3 steps:

- Select the date format for your birthdate, such as mm/dd/yyyy or dd/mm/yyyy.
- Create a formula with the
**DATEDIF**function. - Customize the cell format.

First, make sure your birthdate is entered correctly in the cell. Then select the cell where you want the result, and type “=” followed by “DATEDIF(” and enter reference values for **start_date (birthdate cell) and end_date (today’s date)**. After that, enter **“, “ymd”**). The ymd argument tells Excel to return the age in years (“y”), months (“m”), and days (“d”).

To get rid of fractional results, use **TRUNC()** or **INT()** functions in the formula. Press Enter and you’re done!

It’s amazing how many Excel users don’t know about **DATEDIF**. It was added to MS Office post-Excel 2000 version.

Let’s discuss calculating Days until a Deadline with **DATEDIF** in the next paragraph!

### Calculate Days until a Deadline with DATEDIF

Create a new Excel worksheet or open an existing one. Select the cell where you want to display the number of days until the deadline. Type **“=DATEDIF(“** without quotes. Double-quotes go around today’s date followed by a comma. Then type in the deadline’s date in double-quotes. Put **“, “D”” at the end (without quotes)**. The letter “D” tells Excel to calculate in days. Press Enter and view your answer.

This method is helpful for meeting deadlines and staying on top of commitments. It can be used for scheduling projects and other tasks. **DATEDIF** also allows users to calculate days until a deadline. For example, I used it to submit assignments during finals week.

It was easier to manage deadlines when I could see the exact number of days I had left. Also, it can be used to measure progress over extended periods. *Get the number of Weeks between Two Dates with DATEDIF* is a great application.

### Get the number of Weeks between Two Dates using DATEDIF

Get the # of weeks between two dates using **DATEDIF**? Follow this 5-step guide!

- Select a cell for the result.
- Type in the formula: “
**=DATEDIF(Start Date, End Date,”w”)**“. - Replace “Start Date” & “End Date” w/ the right cells/values.
- Hit enter to calculate the weeks betwixt the two dates.

Sometimes one needs to calculate the # of weeks between two dates; for payroll or project management. With **DATEDIF** function, it’s a cinch!

And easily modifiable too – just change Start Date, End Date & calculation modes.

Don’t miss out on **DATEDIF’s** numerous benefits! Time-saving & accuracy-improving – don’t risk losing efficiency by not understanding how to use it.

Next up? Troubleshooting common challenges when using **DATEDIF functions**.

## Troubleshooting the Challenges Associated with DATEDIF

**Troubleshooting** DATEDIF’s challenges was a learning experience. It showed common troubles Excel users face. With DATEDIF, **errors** can appear. We’ll learn how to troubleshoot them to work better. We’ll also see what happens when using DATEDIF with **non-adjacent dates**. Plus, how to get *round any potential issues*. Finally, we’ll expand on the formula and show hidden uses other than years, months, and days.

### Common Errors you might encounter with DATEDIF

When using the **DATEDIF** formula, a common error is the **#VALUE** or **#NAME** error. This can happen if the syntax is incorrect, or if one of the arguments refers to an invalid cell. Additionally, if one or both of the date inputs contain text instead of numbers, this can produce the same error.

Another error is when **DATEDIF** does not include certain periods like days, months or years. To fix this, make sure to specify which interval you want to use by including the relevant letter code; for example, months = “*m*“, days = “*d*“, and years = “*y*“.

Excel may also misinterpret your date inputs, so ensure that they’re accurately converted into date format. Lastly, when calculating future dates with **DATEDIF**, a **#NUM!** error message can occur if it isn’t accounting for leap years.

One user shared a story of experiencing similar difficulties with **DATEDIF**. After resolving the issues, they acknowledged the usefulness of the formula but noted the importance of being meticulous with inputs and double-checking accuracy.

When DATEDIF works with non-contiguous dates.

### When DATEDIF works with non-contiguous dates

When using the **DATEDIF** formula, gaps between two dates or multiple sets of non-contiguous dates can lead to inaccurate results. To solve this, convert non-continuous cells into a contiguous range with **CONCATENATE** or **TextJoin Function**. Alternatively, a pivot table can be used. Remember that **DATEDIF** doesn’t always work when it comes to holidays or Leap Year. For precise calculation in such scenarios, use the **Workday Formula**.

### Alternative uses of DATEDIF beyond years, months, and days

Excluding weekends with **DATEDIF** is a breeze – simply add up the total number of weeks and divide by 7 to get the full week’s count! To exclude holidays, create a separate worksheet with a list of holidays and incorporate it into the formula.

**DATEDIF** also calculates time intervals of *years, months, days and down to seconds*. With various combinations of parameters, users can customize calculations like counting leap years and estimating quarterly returns.

For example, Investopedia suggests doing “a common financial analysis [like] calculating quarterly returns on an investment portfolio over several years”. With Excel formulas, like **DATEDIF** in combination with **SUMPRODUCT** or **IF** statements, this can be done quickly and easily!

## Some Facts About DATEDIF: Excel Formulae Explained:

**✅ DATEDIF is a hidden function in Excel that calculates the difference between two dates in various units such as days, months, and years.***(Source: Exceljet)***✅ The syntax for DATEDIF is =DATEDIF(start_date, end_date, unit).***(Source: AbleBits)***✅ The function is considered to be undocumented and is not included in any Excel Help files or in the Insert Function dialog box.***(Source: Microsoft)***✅ DATEDIF can be used to calculate the duration between two events, the age of a person, or the number of workdays between two dates.***(Source: Excel Easy)***✅ DATEDIF can be a useful tool for financial analysts, project managers, and anyone working with date calculations in Excel.***(Source: WallStreetMojo)*

## FAQs about Datedif: Excel Formulae Explained

### What is DATEDIF: Excel Formulae Explained?

DATEDIF is a formula in Excel that calculates the difference between two dates. It takes three arguments – the start date, the end date, and the unit of measurement (e.g. days, months, or years).

### How do I use DATEDIF: Excel Formulae Explained?

To use the DATEDIF formula, simply enter it into a cell in Excel like any other formula. The syntax is: =DATEDIF(start_date, end_date, unit). For example, =DATEDIF(A1,B1,”d”) would calculate the number of days between the dates in cells A1 and B1.

### What are the different units that DATEDIF: Excel Formulae Explained can calculate?

The available units for DATEDIF are “d” (days), “m” (months), and “y” (years). You can use any of these units to calculate the difference between two dates.

### Does DATEDIF: Excel Formulae Explained include both start and end dates in its calculations?

No, DATEDIF only calculates the difference between the dates. It does not include either the start or end date in its calculation.

### What happens if one of the dates used in DATEDIF: Excel Formulae Explained is blank?

If one of the dates is blank or missing, the formula will return a #VALUE error. Make sure both dates are filled in before using the formula.

### Can I use DATEDIF: Excel Formulae Explained to calculate the difference between two times as well?

No, DATEDIF only works with dates. If you need to calculate the difference between two times, you’ll need to use a different formula or function in Excel.

Nick Bilton is a British-American journalist, author, and coder. He is currently a special correspondent at Vanity Fair.