528070 - minimonth display error off one day beginning Nov 2009

Status: RESOLVED DUPLICATE of bug 281690

(Calendar :: Calendar Frontend, defect)

Description

[Chuck]

User-Agent:       Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.5) Gecko/20091109 Ubuntu/9.10 (karmic) Firefox/3.5.5
Build Identifier: Lightning 0.9 build 2008092321

The minimonth display for November 2009 shows both Sunday and Monday as being the 1st.  Sunday is correct.  All subsequent months are off as well.  This is in the minimonth display _only_.  Appointments and tasks dates are correctly bolded, but the date (number) is on the wrong day of the week.

Reproducible: Always

Steps to Reproduce:
1.  In Thunderbird 2.0.0.23, open Lightning calendar application
2.  Check minimonth display
3.
Actual Results:  
Minimonth display is off by one day beginning with November 2009.


I use the minimonth display a lot.  Appointments and tasks appear (bolded) on the correct date, but the date is not the correct day of the week.  Since I use the minimonth most of the time to check for events, this display error is, at a minimum, aggravating, and could easily cause me to miss an appointment.