@bitsostring @niko
Sorry for the confusing. I was/am running the demo site with the same settings as @bitsostring
The graphs there were correct so I assumed another cause. But the graphs were correct as they used the SQL data.
And it was late when further checking so I thought it was the WU file.
Wrong, :oops: I did not set in canvas.js the correct date format of the WU.CSV .
Attached new version of the graph script.
w34_graph_xx.php.zip (5.31 KB)