Use the :now modifier to display the year of now (ie. the moment when the diary is generated).
This is useful, for example, when you need to display the copyright year, regardless of the year of the diary being produced.
© Copyright [yyyy:now]
You can use Global Saras to display the value of this token and other global tokens in PlainQuarkPages, such as the tokens [year] Script Year, [yyyy:now] Year of Now, [ref#] Job/Reference Number. This is useful to be able to apply copyright dates to PlainQuarkPages.