About Date/Time Values in Expressions
You can specify date and time values in an expression; for example:
#{System.currentDateTime}
or
#{currentTask.taskInfo.expireDate}
These date and time values are evaluated as follows:
If a given data element within an expression is a java.util.Date type, it is automatically converted into epoch time in milliseconds as a java.lang.Long type. Therefore, all arithmetic and comparison operators can be applied to that value, as it now exists as a long number.
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