The timewave calculator displays a plot of novelty over a given timespan. It takes as input a beginning date, an ending date, and a target date. The plot’s domain extends from the beginning date to the ending date; the target date is marked on the plot and the novelty scores for the target are displayed on the left for each number set selected.

The number sets are derived from one of three sources: the King Wen sequence of the I-Ching, the Huang-Ti sequence of the I-Ching, and Ben Franklin’s magic square.

This calculator allows you to view three versions of the King Wen sequence:

• the Kelly version is the original set used by Terrence Mckenna it was created by Royce Kelley and Leon Taylor in 1974 as McKenna was developing the theory
• the Watkins version is based on a criticism of Novelty theory by Matthew Watkins in which he designed a formula capturing the I-Ching transformation.
• the Sheliak version is based on a revision from physicist John Sheliak, this version is the one which McKenna himself was the most mathematically sound
• In addition to the King Wen sequence the Huang-Ti sequence and Ben Franklin’s magic square have also been converted into novelty number sets.

When at least one number set is selected and a target date is specified the calculator will display the novelty value for the target date in each selected number set in the bottom left panel of the program.

Dates can be set in three ways, you can manually enter them with the keyboard into the text boxes, you can also specify them using the mouse: holding in ctrl and clicking on the plot will set the beginning date, holding shift and clicking on the plot sets the ending date, and clikcing on the plot without holding in any keys will set the target date and update the plot, the final way to set the dates is through the resonate buttons.

• Resonate back or red shift will set the dates to a previous date range that shares the same resonance as the currently displayed dates.
• Resonate forward or blue shift will set the dates to a later date range sharing the same resonance as the currently displayed dates.

The resonate functionality is not perfect, it merely provides an approximate resonance. This flaw is especially seen when shifting between dates in the ancient past and those near the 2012 singularity. This flaw results from very small imprecisions in the 2012 area in which micro seconds translate to many years in a plot of ancient time.

There is also the mayan calculator which converts between mayan calendrics and a pseudo gregorian date, the date is pseudo because mayan calendrics go back so much further than gregorian that it merely provides a scale reference to make such vast time spans more comprehensible.