How to set Holiday in gantt chart

Gantt
#1

I want to pass array of holidays

#2

Hello Nitish,
To specify the work time settings, you need to use the setWorkTime method:
https://docs.dhtmlx.com/gantt/api__gantt_setworktime.html

If you have an array of dates in the String format, you need to convert each date to the Date object and give it to the setWorkTime method.
Here is an example of how it might be implemented:
http://snippet.dhtmlx.com/af84253ae