Gantt can,t visualize the fractional data as a day

I am integrating gantt for visualize some data but the gantt can’t take fraction value as a day

.This show 0 if this is a fraction value. I passed
[
{
“id”: 1,
“text”: “resource Gantt timesheet duration calculation”,
“start_date”: “14-03-2021 10:38:38”,
“project”: 1,
“progress”: 0,
“open”: true,
“priority”: 1,
“duration”: 0.21,
“color”: “gray”,
“projectname”: “tpms”,
“issue_no”: “03.10.003.002”,
“resource_name”: “sohel”,
“asumption_start”: “14-03-2021 10:38:38”,
“asumption_end”: “14-03-2021 15:38:38”,
“actual_start”: “14-03-2021 10:38:38”,
“actual_end”: “14-03-2021 10:38:38”
},
{
“id”: 2,
“parent”: 1,
“text”: “(Assinged)resource Gantt timesheet duration calculation”,
“start_date”: “14-03-2021 10:38:38”,
“project”: 1,
“progress”: 0,
“open”: true,
“priority”: 1,
“duration”: 0.21,
“color”: “blue”,
“projectname”: “tpms”,
“issue_no”: “03.10.003.002”,
“resource_name”: “sohel”,
“asumption_start”: “14-03-2021 10:38:38”,
“asumption_end”: “14-03-2021 15:38:38”,
“actual_start”: “14-03-2021 10:38:38”,
“actual_end”: “14-03-2021 10:38:38”
},
{
“id”: 3,
“parent”: 2,
“text”: “(current)resource Gantt timesheet duration calculation”,
“start_date”: “14-03-2021 10:45:11”,
“project”: 1,
“progress”: 0,
“open”: true,
“priority”: 1,
“duration”: 0.36,
“color”: “orange”,
“projectname”: “tpms”,
“issue_no”: “03.10.003.002”,
“resource_name”: “sohel”,
“asumption_start”: “14-03-2021 10:38:38”,
“asumption_end”: “14-03-2021 15:38:38”,
“actual_start”: “14-03-2021 10:38:38”,
“actual_end”: “14-03-2021 10:38:38”
}
]

this json data where the duration is a fraction value.
I have tried this bellow
var formatter = gantt.ext.formatters.durationFormatter({
enter: “day”,
store: “minute”, // duration_unit
format: “day”,
hoursPerDay: 24,
hoursPerWeek: 168,
daysPerMonth: 30
});
gantt.config.columns = [
{name: “text”, tree: true, width: 170, resize: true},
{name: “start_date”, align: “center”, resize: true},
{name: “duration”, label:“Duration”, resize: true, align: “center”,
template: function(task) {
console.log(task);
console.log(task.duration);
console.log(formatter.format(task.duration));
return formatter.format(task.duration);
}, width: 100},
{name: “add”, width: 44}
];
gantt.init(“gantt_here”);

but still this is not taking any fraction value. Your assist will be very helpful for me. Thanks in advance.

Hello Sohel,
Gantt stores the duration in the integer format. There is no way to change that. But you can use the formatter extension to change what is displayed for the users. You can also use it to convert the float values to integer.
Here is an example of how it can be implemented:
http://snippet.dhtmlx.com/5/6d9f78713