If you do a new XY chart you can see you can see 2 different values, you can render them as columns and I think you get something similar to what you want. You can use those as Europe and America. Then from there
Thanks for the reply, you mean that I should create in the query 4 different columns (not only Timezone so) and then create 4 series and bind every series to that specific column?
Yes, I guess bind the Europe series with one column type and America series with another column type, just play with it the XY component values to get the result you want.