1498521 - Calender Lightning Bug - Adding All-Day-Events from the past

Status: RESOLVED DUPLICATE of bug 1497463

(Calendar :: General, defect)

Description

[bugzi]

Attachment: checked_box.PNG

User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:62.0) Gecko/20100101 Firefox/62.0

Steps to reproduce:

Add a new "all day long" date to the calender (Lightning-Addon) which is in the past like a birthday (e.g. 10th October 1990). As soon as the checkbox "all day long event" is checked the date changes to 8th October 1990 automatically (in the above mentioned example). If I uncheck the box the date is correct again.


Actual results:

The annual dates (birthdays) are saved with a wrong day (one or two days before the desired date). This only happens with dates in the past that are set as all day long events.
When you try to manually change the date again Thunderbird hangs up with showing an info box "End date is before start date" which can not be clicked away. (you have to kill the thunderbird process manually).
 If I add a new event with the date of today or in future everything works fine. 


Expected results:

In earlier Versions it was possible to set dates in past as all day events and the date did not change automatically to another date.

Comment 1

[bugzi]

Attachment: unchecked_box.PNG

Comment 2

[bugzi]

It seems like this behaviour just happens with dates in October. I just tested a date in September and November and it worked fine