I'd like to render a monthly Gantt chart with the number of months elapsed rather than the name of the year and month. (This is used for proposals: The project could be funded one quarter, or the next, so you have to give elapsed time rather than absolute date.) For example:
Project starts 2024-3-1
[Task1] starts 1 March 2024 and lasts 90 days
then [Task2] lasts 90 days
Generates an image with the timeline on the top like:
|March | April | May | June | July | August|
I'd like it to look like:
How can this be changed? Is there a localization that results in just months elapsed?