426124 - Event start or end time subtracts 2 hours with each click

Status: VERIFIED DUPLICATE of bug 400318

(Calendar :: General, defect)

Description

[Damian Wheeler]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.8.1.13) Gecko/20080311 Firefox/2.0.0.13
Build Identifier: Lightening 0.7, Thunderbird 2.0.0.12

My Timezone is set to Australia/Adelaide and I've only noticed this happening in the last week or so.
When I create a new event in the calendar and set the start time (either typed into the box or clicking on hour & minute selections) it loses 2 hours when you leave the field. To set an event for 3pm I have to select 5pm for it to show 3pm. When I click on the end time field it subtracts another 2 hours from both start and end time. 
The same thing happens again if I click on the start time field and so on.

Reproducible: Always

Steps to Reproduce:
1.Create a new task
2.Enter a start time via the drop box
3.when you've selected the minute component, the box closes and the time loses 2 hours.
4. Click on the End time field and another 2 hours is immediately subtracted.
Actual Results:  
Continually move the start/end time back 2 hours at a time with each click on a time field.

Expected Results:  
No change. Time should stay where it is selected to be.

This is not an imported event or linked to a calendar server, just stand alone. 
Adelaide (South Australia) have extended daylight savings by a week, I don't know if this contributes but that should only by one hour out and not two.

The other bugs I've looked at with unwelcome time changes seem to be either on imported events or alerts moving or not reading iCal server information correctly or some other third product is involved. Apologies if this is still duplicated.

Comment 1

[Bas van den Bosch]

Thios is a known bug which has been fixed in the latest nightlies which you can download from:
http://ftp.mozilla.org/pub/mozilla.org/calendar/lightning/nightly/latest-mozilla1.8/