Understanding the Difference Between Scale Type Time and Timeseries in Chart JS

I have a chart with dates and value for each day, and the whole period is 40 days. Is there an option to show every second day on the y axis instead of every day? For example, 06.01 and 08.01. instead of 06.01 07.01 08.01 regardless that I have values ​​for 07.01. That value should be in between. Because my y-axis is too crowded...