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Please note that some Addons have prerequisites that need to be installed before they can be used.
This Addon/Plugin system is controlled by the Plugin Manager

Date Calculator Gramplet - Default opening dialog

The Date Calculator Gramplet allows you to do date math.

Enter at least one valid date for Expression 1 and Expression 2 then click the Calculate button.

An expression can be:

  1. a valid Gramps date
  2. a positive or negative number (represents years)
  3. a positive or negative tuple (years, months, days)

Use the Clear button to start again.

Example usage

Date Calculator Gramplet - Example results

Enter a date in each field in the following format ( YYYY-MM-DD ).

See also