This operator is only available when connected to an Aster database.
For a date/time stamp argument, the Extract Epoch returns the number of seconds since the argument (1970-01-01 00:00:00-00) can be negative. For interval arguments, it returns the number of seconds in the interval. When dragging an Extract Epoch operator into a variable, the following tree element is created.
Variable Creation > Input > Variables: SQL Elements pane - Date and Time > Extract Epoch
