If the task ends the day, how do I change the duration to 1

Gantt
#1

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Now I need to add the duration to 0 plus 1, or add all the duration to 1.

#2

Hello,
Do you want to make the duration inclusive?
Gantt stores the end_date in a non-inclusive format. Unfortunately, there is no way to change it. But you can change what is displayed in the grid and the lightbox by changing the end_date template.
That functionality was added in the 6.3.0 version:
https://docs.dhtmlx.com/gantt/api__gantt_task_end_date_template.html
https://docs.dhtmlx.com/gantt/desktop__loading.html#loadingtaskdates
Here is the snippet that demonstrates how it works:
http://snippet.dhtmlx.com/5ce879b8b

#4

If the task schedule is set by start_date and end_date, can the duration of tasks with the same start date and end_date be 1?

#5

Hello,
You can change what is displayed in Gantt, but there is no way to change how Gantt stores the data.
So, you can have the same date for the start_date and end_date parameters in the grid and the lightbox, and the duration will be 1 day:
https://snippet.dhtmlx.com/5ce879b8b

But you cannot have the same date in those values to have 1-day duration:

1 Like
#6

Ok, got it. Thanks for your answer.