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Written by Jacky Chou

# How To Calculate The Number Of Days Between Dates In Excel

## Key Takeaway:

• There are two basic formulas for calculating the number of days between dates in Excel: the simple subtraction formula and the DATEDIF function. Both formulas yield the same result, but the DATEDIF function is easier to use for more complex calculations.
• If you are working with dates from different systems (e.g., UNIX timestamp, Excel serial numbers), you can use the CHOOSE function to select the correct system and add or subtract the necessary number of days. It is important to understand the underlying date system to avoid inaccurate calculations.
• To calculate business days between two dates in Excel, use the NETWORKDAYS function. This function automatically excludes weekends and holidays, and can also exclude specific days of the week (e.g., Saturdays). By using the NETWORKDAYS function, you can accurately calculate the number of business days for any given time period.

Are you struggling to figure out how to calculate the number of days between two given dates? Excel can be used to solve this problem and make your life easier. You can easily and quickly calculate the dates and have the answer in no time!

## Basic Formula for Calculating Number of Days Between Dates in Excel

Calculating the number of days between dates in Excel is essential for managing data accurately. This calculation allows you to deduce the number of days elapsed between two dates, which can be helpful for various purposes, including project management, event planning, and financial analysis.

To perform this calculation in Excel, follow these 5-step guide:

1. Start by opening a new workbook in Microsoft Excel.
2. Type the two dates you want to calculate the difference between in two separate cells.
3. Enter the formula `=DATEDIF(start_date, end_date, "d")` into another cell, replacing start_date and end_date with the cell reference for the respective dates.
4. Press enter and the result, expressed in days, will be displayed in the cell containing the formula.
5. Format the cell containing the result to display as a whole number.

It’s essential to note that the said formula calculates the number of whole days between two dates. Therefore, if you want to include partial days in your calculation, you can use a different formula.

Excel enables users to use various date functions to accomplish specific computations and operations, including calculating different intervals and times between dates. These formulas can be accessed from the Date & Time category of Excel’s formula wizard.

A noteworthy fact is that DATEDIF does not exist in Excel’s formula wizard. One must know the syntax of the formula, which does not follow the typical function syntax of Excel. Image credits: chouprojects.com by Adam Woodhock

## How to Calculate the Number of Days Between Dates with Different Date Systems

Calculating the number of days between dates in different date systems can be challenging. However, with the right tools and knowledge, it can be achieved with ease. To learn how to calculate the number of days between dates with different date systems, follow these steps:

1. Convert the dates to their Julian equivalents.
2. Take the difference between the two Julian dates.
3. Convert the difference into the desired time unit (e.g. days, months, years).
4. Round off the number of days to the nearest whole number.

By following these steps, you will be able to accurately calculate the number of days between dates in different date systems. It’s important to note that the accuracy of the calculation will depend on the accuracy of the initial dates used.

While date systems differ across cultures and time periods, the need to accurately determine the number of days between dates has always been important. In fact, the ancient Egyptians used a sophisticated calendar system to determine when to plant crops and celebrate important events.

Overall, calculating the number of days between dates in different date systems can seem daunting, but with the right approach, it can be done with ease. So, if you need to calculate the time difference in Excel, refer to our step-by-step guide. Image credits: chouprojects.com by Yuval Woodhock

## Calculating Business Days Between Dates

Calculating the Number of Business Days Between Dates is a common task in Excel, especially for professionals who work with financial data. To do so, you need to take into account weekends and holidays, which can be challenging. Here is a step-by-step guide to help you calculate the business days between two dates accurately:

1. Enter the Start Date and End Date in separate cells
2. Use the NETWORKDAYS Function to calculate the number of business days between the two dates
3. Specify a range of holiday dates, if necessary, using the optional parameter of the NETWORKDAYS Function
4. Format the cell to display the result in the desired format
5. Use the IF Function to handle errors that may arise from incorrect inputs
6. Double check your calculations for accuracy and make adjustments as needed

It’s essential to take note of any holidays in your calculations, especially during peak seasons. NETWORKDAYS Function has a feature that allows you to specify the range of dates that need to be excluded from your calculations to ensure accurate results. Additionally, you can use the IF Function to display error messages or custom texts instead of numerical values.

Calculating the number of business days between dates is critical in finance. Many companies have lost money by failing to process payment requests accurately, leading to legal issues. In one instance, a company ran into trouble with their finance department because a significant payment was overdue for more than five business days. After investigating, they realized that the incorrect formula was used to calculate the due date in Excel, leading to the delay. Therefore, accurate calculations are essential to meet deadlines.

By following the six-step approach outlined above, you can quickly and efficiently calculate the number of business days between two dates in Excel without any issues. ‘How to Calculate Time in Excel: A Step-by-Step Guide’ provides additional tips and insights on working with dates and times in Excel that can come in handy for finance professionals. Image credits: chouprojects.com by Yuval Washington

## Five Facts About How to Calculate the Number of Days Between Dates in Excel:

• ✅ Excel has a built-in function called DATEDIF that can be used to calculate the number of days between two dates. (Source: Exceljet)
• ✅ The syntax for using the DATEDIF function is: =DATEDIF(start_date,end_date,”unit”) where “unit” is a string representing the time unit (e.g. “d” for days). (Source: Excel Easy)
• ✅ The DATEDIF function can handle dates in various formats including text, serial numbers, and Excel date values. (Source: Excel Campus)
• ✅ Another Excel function, NETWORKDAYS, can be used to calculate the number of business days between two dates (excluding weekends and holidays). (Source: Exceljet)
• ✅ Excel also has a number of date and time-related functions such as TODAY, NOW, MONTH, YEAR, HOUR, MINUTE, and SECOND that can be used in date calculations. (Source: TechTarget)

## FAQs about How To Calculate The Number Of Days Between Dates In Excel

### How to Calculate the Number of Days Between Dates in Excel?

To calculate the number of days between two dates in Excel, follow these steps:

1. Select the cell where you want the result to appear
2. Enter the formula: =end_date – start_date, replacing “end_date” and “start_date” with the actual cell references or dates
3. Press Enter to get the result

### Can I use functions to calculate the number of days between dates?

Yes, Excel has several built-in functions that can help you calculate the number of days between dates, such as DATEDIF, NETWORKDAYS, and DAYS. Each function has its own syntax and usage, so make sure to read the instructions carefully before using them.

### What date formats are supported in Excel?

Excel supports many different date formats, including the most common ones such as “mm/dd/yyyy” and “dd/mm/yyyy”. You can also create custom date formats using the Format Cells dialog box. To access it, select the cell or range of cells that contain the dates, right-click, and choose Format Cells from the context menu.

### How do I handle weekends and holidays when calculating the number of days between dates?

To exclude weekends and holidays from the number of days between dates, use the NETWORKDAYS function instead of the subtraction formula. This function takes into account weekends and any dates that you specify as holidays, and returns the number of working days between two dates. Its syntax is: =NETWORKDAYS(start_date, end_date, [holidays]).

### How do I calculate the age in years, months, and days based on a birthdate?

To calculate the age in years, months, and days based on a birthdate, use the DATEDIF function with the “y” (for years), “m” (for months), and “d” (for days) unit types. The formula syntax is: =DATEDIF(birthdate, today_date, “y”)&” years, “&DATEDIF(birthdate, today_date, “ym”)&” months, and “&DATEDIF(birthdate, today_date, “md”)&” days”.

### Can I use the number of days between dates in other calculations?

Yes, you can use the result of the number of days between dates in other calculations, such as finding the average or sum of a range of values over a certain period of time. Simply use the cell reference of the formula that calculates the number of days as an argument in another formula or function.

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