Custom months name Timeline

[Alcaline]

Hi everyone!

I'm currently trying to display a fictionnary timeline, using Google Timeline API and this guide :https://developers.google.com/chart/interactive/docs/gallery/timeline#data-format

My issue is : I'd like to replace the Gregorian calendar (months name, number of day in each month) by my custom Month names.

Is that possible ? If yes, where should I look ? Thanks for your help :)