Utilizing DATEDIF function in Excel: Counting Days, Months, Years

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Ngày cập nhật gần nhất: 15/4/2026

Frequently Asked Questions

1.

What is the purpose of the DATEDIF function in Excel?

The DATEDIF function in Excel is designed to calculate the difference between two dates in terms of days, months, or years. It simplifies date calculations, making it a preferred choice for tasks such as calculating age or seniority.
2.

How do I use the DATEDIF function to calculate age in Excel?

To calculate age using the DATEDIF function, input the formula =DATEDIF(start_date, NOW(), 'y'). Replace start_date with the cell containing the birth date. This formula returns the number of complete years between the birth date and the current date.
3.

What are the different units of measurement in the DATEDIF function?

The DATEDIF function supports various units of measurement: 'd' for days, 'm' for months, and 'y' for years. Additionally, it has options like 'yd' for days excluding years and 'ym' for months excluding years, which are less commonly used.
4.

Can the DATEDIF function help troubleshoot date-related errors in Excel?

Yes, the DATEDIF function can help identify and troubleshoot date-related errors by providing accurate date calculations. Using it correctly ensures that you avoid common pitfalls in date handling, improving overall data integrity.

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