Yes, there is a deadline date for enrollment in the MBA degree program. See Academic Calendar.
There is no deadline date for starting the DBA degree program.
There is no deadline for completion in any Calwest degree program; and you do the courses at your own pace. However, explanations will be sought if Graduate programs take more than 5 years to complete, and Doctoral degree programs take more than 7 years to complete.
Calwest University is an USA based institution that specializes in providing distance learning programs via the Internet to a global audience. Its global education programs are approved by the Australian Education Standards Credentials Agency (AECSA).