For employees, especially those in leading/managing position, here is a list of auspicious dates in 2013 for starting new job/post/assignment, including joining new company, which is produced based on the Chinese almanac Tong Shu.
There are only 2 auspicious dates for this in 2013.
It can be applied to first day reporting to new company/department/office/position, go for the post to lead/manage a new business unit/team/project/programme. It can also be applied to assuming new job position after promotion/restructuring/relocation exercise.