why the I-485 updated on Mar.11, this sunday?

Who can tell me why only the dependent's I-485 case was updated on this Sunday? Do they work on sunday?

所有跟帖： 

• System error while changing to summer time -sleepingtiger- ♂ (11 bytes) () 03/12/2007 postreply 06:36:33

• 經常是這樣的，我覺得EMAIL是係統自動發的，有在後麵 -99豔陽天- ♀ (0 bytes) () 03/12/2007 postreply 07:07:42

• It seems you are very active here currently. -xiaoshagua- ♂ (0 bytes) () 03/12/2007 postreply 07:51:42

• nice -HHLL- ♀ (0 bytes) () 03/12/2007 postreply 11:05:30

• 你們的NC怎麽樣了？我的2月完成了但現在被轉到TSC了 -HHLL- ♀ (0 bytes) () 03/12/2007 postreply 11:07:18

• How do you know it is done ? 我的2月完成了但現在被轉到TSC了 -woaiwojia- ♀ (89 bytes) () 03/12/2007 postreply 11:48:20

• First lady+FBI -HHLL- ♀ (0 bytes) () 03/12/2007 postreply 12:09:51

• Are you kidding me? They work on Sunday? If yes, the sun -win00all- ♂ (40 bytes) () 03/12/2007 postreply 10:52:48