Graph > Time Series Plot
Stat > Time Series > Time Series Plot
Use to evaluate patterns in data over time. Minitab can generate calendar values, clock values, or index values for the time scale, or you can use your own column of stamp values. See Time Overview.
Minitab plots the data in worksheet order, in equally-spaced time intervals. If your data are not entered in chronological order or were not collected at regular intervals, you may want to use Graph > Scatterplot.