About date fields
Use date fields to store:
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dates you need to sort or search through
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dates used in calculation formulas or summary fields
Date fields can store values from January 1, 0001 to December 31, 4000.
Important  To avoid confusion when using dates in FileMaker Pro, always use four-digit years. For information on how FileMaker Pro handles dates with two-digit years, see Conversion of dates with two-digit years.
Notes
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The separators in date fields and the order in which the date parts appear depend on the system formats set for the file and the display format for the field. For information on changing the display format for a field (for example, July 7, 2014 or 7/7/2014), see Specifying formats for date fields.
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New files and clones of existing files use the current operating system format for date formatting.
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To make sure dates are always entered with four-digit years, see Defining field validation.
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If you are using FileMaker Pro Advanced, you can copy field schemas from one file and paste them into the same file or some other file. See Copying and pasting field schemas (FileMaker Pro Advanced).
Related topics 
About defining database fields
Specifying formats for date fields
Working with data in date fields
Dates are not as expected
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