kendo.timezones.js is generated from an outdated IANA tz database. The Canadian zones that moved to permanent standard time still observe DST in Kendo, so dates are off by one hour.

Reproduction

kendo.timezone.offset(new Date("2026-12-01T12:00:00Z"), "America/Vancouver");

Current: 480 for Vancouver, 420 for Edmonton, 360 for Winnipeg (DST rule Canada still applies).

Expected (tzdata 2026b-2026e, latest 2026f): 420 for Vancouver, 360 for Edmonton, 300 for Winnipeg. America/Inuvik is also affected (-06).

Bug report

Reproduction of the problem

If the title of the View is not initially set and setOptions method is used then the views in the Scehduler toolbar are displayed with: 'kendo.ui.DayView', 'kendo.ui.WorkWeekView', 'kendo.ui.WeekView'...

Open the Dojo - https://dojo.telerik.com/dCcHVbSb

Current behavior

Expected/desired behavior

The default titles should be displayed even after setOptions is used.

Environment

• Kendo/Telerik version: 2026.3.1015
• Browser: [all ]

Bug report

Recurring events are not rendered on the correct date when an event has to be displayed on different dates in different time zones.

Reproduction of the problem

1. In our demos or the Dojo linked here create an event with starting time of 09 AM. Set the event to repeat every Monday. In the example below the timezone of the machine and the event is UTC +2 (Sofia)

Below are two events recurring and nonrecurring created with the same starting date and time in UTC +2

1. To simulate opening in different time zones change the Timezone on the machine with a difference of more than -9 hours, so the event to be expected to display on the previous day. For example, select UTS -10 Hawaii.

Current behavior

After changing the time zone on the machine from UTC +2 to UTC -10 the event is rendered at 8 PM, but it is still displayed on Monday. Thus, recurring and non-recurring events created with the same start date and time are displayed on different days when the time zone is changed:

Expected/desired behavior

The date of the recurring event should be changed according to the time zone. It should be possible to repeat events on a different days of the week when the Scheduler is opened at different timezone

Environment

• Kendo UI version: 2022.2.512
• Browser: [all ]

Describe the bug
When there is an event that lasts multiple days, but is not an all-day event the title and the up arrow overlap, thus it makes the reading of the title harder.

To reproduce
Open the Dojo - https://dojo.telerik.com/@NeliK/IruYeGEc

Expected behavior
The arrow and the title should be rendered with some margin

Screenshots

Workaround

 .k-event-template{
      margin-top: 8px !important;
    }

Affected package (please remove the unneeded items)

• theme-default
• theme-bootstrap
• theme-material
• theme-tasks

Affected suites (please remove the unneeded items)

• Kendo UI for jQuery
• Kendo UI for Angular
• Kendo UI for React
• Kendo UI for Vue

Affected browsers (please remove the unneeded items)

• All

Bug report

When the timezone of the machine and the timezone set in the Scheduler are in different days, the currentTimeMarker is not displayed in the Timeline view.

Reproduction of the problem

1. Change the timezone of the machine to 'Fiji' or another timezone, thus the 'Honolulu and the chosen timezones are on different days. For example, when it is 3 am on 01.06 in Honolulu, it is 1 am on 02.06 in Fiji.
2. Open the Dojo linked here where the timezone is set to 'Pacific/Honolulu' - https://dojo.telerik.com/@NeliKondova/UVuDAJib

Current behavior

When the timezone of the machine and the timezone set in the Scheduler are in different days, the cusrrentTimeMarker is not displayed in the Timeline view.

Expected/desired behavior

The cusrrentTimeMarker should be displayed in all the views.

Environment

• Kendo UI version: 2023.1.425
• Browser: [all ]

Hi Team,

I would like to ask for virtualization for the Kendo UI Scheduler when there is no grouping.  

Thank you!

Hi Team,

I would like to request adding the EventsPerDay configuration for the Week view. 

Thank you!

Bug report

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/FLFnHPpW
2. Try to change the start/end of the events by dragging

Current behavior

Incorrect hint is displayed and the events can not be resized correctly.

Expected/desired behavior

The events should be properly resized.

The issue is related to the used theme. The behavior is correct when using the themes version 12.0.0

Hi Team,

I want the scheduler to respond to mobile phones and tablets, e.g. I have many columns in the day view. I want to have specific columns, e.g. the first 2 or 3 to be visible and the rest to scroll horizontally so that you can see them within the scheduler and not have to scroll the page horizontally.

Thank you!

Bug report

On Safari, the Scheduler throws an error.

Reproduction of the problem

1. Open and run this Dojo example - https://dojo.telerik.com/UZATyPgT/10
2. Check the browser console

Current behavior

An error is thrown on the browser console

Expected/desired behavior

No errors should be thrown

Environment

• Kendo UI version: 2025.1.227
• OS: iOS 15.4.1
• Browser: [Safari18.4]

Bug report

In the Scheduler, when mobile is set to "tablet", and RTL is enabled, the event dates are shifted with one day.

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/IPBwjaVc/4

Current behavior

The events are rendered on the 30 and 01 slots, instead of 29 and 30 as defined

Expected/desired behavior

Events should be rendered on the 29th and 30th slots, as configured

Environment

• Kendo UI version: 2025.2.702
• Browser: [all]

Hi,

I'm trying to define individual business hours for the scheduler. The  scheduler only uses a single start/end time for each work day. I want to define start/end times for each day specifically (ie. Monday has different times than Tuesday).
Eg:
Sunday working hours       @ 10:00 to 12:00
Monday working hours       @ 9:00 to 16:00
Tuesday working hours      @ 10:00 to 18:00
Wednesday working hours@ 06:00 to 12:00
Thursday working hours     @ 08:00 to 14:00
Friday working hours           @ 11:00 to 12:00
Saturday working hours      @ 11:30 to 13:00

Can anyone resolve my problem.

Thanks in advance

Hi Team,

I would like to request a way to incorporate adding a reference to the model for group cells in the Kendo UI Scheduler.  Perhaps using a uid for the cell may help. 

Thank you!

Hi Team,

I would like to request the inclusion of a PDF template property to allow the printed PDF page to have a custom layout like the Kendo UI Grid's page-template in this live demo.  For example, adding a title to the top of the page.  

Thank you!

Currently, when interacting with the "More Events" button:

The widget navigates to the "Day View" by default - if it happens to be present. It would be beneficial if there is a configuration that allows explicitly dictating the navigation behavior.

Bug report

If an all-day event is resized to multiple days and then the user tries to resize the event back to one day, the event is not always resized.

Reproduction of the problem

1. Open the Scheduler Demos - https://demos.telerik.com/kendo-ui/scheduler/move-resize
2. Try to resize Alex`s birthday (06/14) or Bob's Birthday (on 06/29) to multiple days
3. Then try to resize the event back to a single day

Current behavior

The issue is occasionally reproducible and does not occur for all all-day events. The event is resized back only if the user tries to drag the mouse down and then resize. Here is a screencast - https://somup.com/cZeX6QpRlX.

Expected/desired behavior

It should be possible to resize back the all-day events back to one-day duration without moving the mouse down.

Environment

• Kendo UI version: 2024.1.130
• jQuery version: x.y
• Browser: [all ]

Hi,

Currently the Scheduler has no option to limit the axis of the drag and drop.

Kendo.Draggable already has this feature, however setting it in the scheduler has no effect.

https://docs.telerik.com/kendo-ui/api/javascript/ui/draggable/configuration/axis

in this dojo i have a little workaround to achieve this behavior.

https://dojo.telerik.com/oWuvUsIt

Bug report

If you configure a Scheduler's endTime (e.g. 16:15), and you have an event that ends past that endTime (e.g. 16:30), the event will not be properly visible.

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/esihUMUv/8
2. Scroll to the 3 PM slot, where a Tennis Practice event should be scheduled

Current behavior

The Tennis Practice event is only briefly visible

Expected/desired behavior

The event should be visible respecting the view's endTime

Environment

• Kendo UI version: 2023.3.1114
• Browser: [all]

As for the current version of the Telerik Scheduler, if using the Adaptive Rendering Mode for the Scheduler

 .Mobile(MobileMode.Auto)

the Adaptive Slot Height feature (https://demos.telerik.com/kendo-ui/scheduler/adaptive-slot-height) does not work for a mobile screen in a Month view. Due to  this, there is no opportunity to dynamically change the height of the slots in a Month view so that they can fit the events in the specific slot. Thus, in case dots standing for the events in a month view are customized and replaced by regular events, the scheduler cells do not change their height to account for the events number. The only options to display all the events per day in a month view on a small screen are now either to make the height of all scheduler cells really big (not user friendly) or decrease the height of the events depending on their number to fit them in a cell (not desirable behavior).

Taken all this into consideration, adaptive rendering mode needs the same adaptive slot height feature which exists now only for a regular mode of the scheduler.