[Gantt] Items are mispositioned due to Daylight Savings

[georgi-sla]

Description

Currently, when the Gantt component renders a task that spans daylight saving time, the other tasks displayed in the component are mispositioned by an hour. Furthermore, this breaks the task-dragging functionality.

Steps To Reproduce

1. Create a Gantt component.
2. Render an event that spans the daylight saving.
3. Display another event.
4. See how the second event is shifted from its expected position.
5. Try dragging the task and see the values in the tooltip.

Please, check out the following StackBlitz demo: https://stackblitz.com/edit/angular-ussdl9ho-ahbbxluc

Screenshots or video

There are two Gantt components in the screenshot - the first without an event spanning daylight saving and the second Gantt has such an event. Notice the difference in the Item 1 position

Actual Behavior

When there is a task spanning daylight saving time, the other tasks are mispositioned. This also breaks the task-dragging feature.

Expected Behavior

Having a task that spans daylight saving should not affect the position of the other tasks.

Browser

All

Browser version

latest

OS type

MacOS

OS version

No response

Last working version of the Kendo UI for Angular package (if regression).

No response