@obrienb111,

When just labels are passed without x-values, x-values are automatically added in successive order as 0,1,2,3,4…

In order to add a stripLine to a particular value, you can set the value property of the stripLines as the corresponding x-value of the dataPoint. You can use the label property in order to set the label of the stripline as an 8-char string format of time.

—
Adithya Menon
Team CanvasJS