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Data validation date in specific year

Excel formula: Data validation date in specific year
Generic formula 
=YEAR(A1)=2016
Explanation 

Note: Excel has several built-in data validation rules for dates. This page explains how to create a your own validation rule based on a custom formula in case you want or need more control and flexibility.

To allow a user to enter only dates in a certain year, you can use data validation with a custom formula based on the YEAR function.

In the example shown, the data validation applied to C5:C7 is:

=YEAR(C5)=2016

How this formula works

Data validation rules are triggered when a user adds or changes a cell value.

This custom validation formula simply checks the year of any date against a hard-coded year value using the YEAR function.

When a user enters a value, the YEAR function extracts and compares the year to 2016:

=YEAR(C5)=2016

When the years match, the expression returns TRUE and validation succeeds. If the years don't match, or if the YEAR function is not able to extract a year, validation fails.

Date this year

To allow only dates in the current year, you can adjust the formula like this:

=YEAR(C5)=YEAR(TODAY())

The TODAY function will return the current date on an on-going basis, so formula returns TRUE only when a date is in the current year.

Note:  Cell references in data validation formulas are relative to the upper left cell in the range selected when the validation rule is defined, in this case C5.

Author 
Dave Bruns

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