Date time boxes can be edited. You may wish to SetA time to someones Birthday and SetB time to another Birthday like GrandPa Father and Son or Famous figures. 'X2 Faster' button doubles rate of time, X2 Slower halves rate.
Basic ratio selects the angle shown visually as the basic ratio of time intervals, so that example Birthday in 1940, another Birthday set to 1980 will have a time 2000 when 20/60 = 1/3, a triangle.
The Ratio of the times is shown visually as the angle swept by the geometry ratio with a full turn when 'Basic Ratio' is selected. When sound is switched 'on' , 3 frequencies corresponding to the Birthday Ratios with present time is sounded.
Beats ratio is an abstract format showing A ratio of Beating frequencies which means difference frequencies. This can show the Golden Ratio as = 1 and other special harmonic damping points which are all an expression involving square roots. You can hear the beats dissapating when the Beats ratio or the Reciprocal Beats ratio are integer fraction values.
Click 'Sound' button to hear what these time intervals will sound like scaled up many octaves, default = 37 octaves. Click 'Octave /2' to halve the frequency, 'Octave X2' to double. An ocatve is doubling the frequency a number of times, or halving. Since by Physics definition and discovery frequency = 1 /(Timeinterval).
The default times are set to 1993.4.20, when Uranus & Neptune were in alignment which happens about every 180 years, .The other time is 1940.11.15 when Jupiter Saturn were aligned which happens about every 20 years
Note: Some browsers don't support Sound Audio API but Google Chrome does for sure.