Start day of month

Hello

Is there any way to set the start day of each month on 10th day of the month?

For example, each month in the Gantt starts on 10 May, 10 June, 10 July ,…

Hello Ali,
In general, it is possible to do that. But there are specific details that might lead to issues.
Do you want to hide the days 01-09 or they should be rotated so that when there is 30th or 31st of the month, the next month starts?

Here are the snippets:
http://snippet.dhtmlx.com/a31e5b787
http://snippet.dhtmlx.com/7d3db4fbe

If you just need to hide the days from the scale, what should happen to the task duration? If the duration is less than 10 days, tasks will shrink and might look as if they have 0 days duration: