The duration of a postgraduate degree program in Ireland can vary depending on the type of qualification and the specific course of study. Generally, postgraduate programs in Ireland can be categorized into the following:

1. Taught Master’s Programs: Taught master’s programs typically last for one or two academic years, with full-time students completing their studies in one year and part-time students taking longer, usually two years. Some specialized master’s programs may have a shorter or longer duration.
2. Research Master’s Programs: Research master’s programs, also known as MRes or MPhil degrees, are research-intensive programs that involve independent research under the supervision of a faculty member. The duration of research master’s programs can vary, but they typically last for one to two years.
3. Ph.D. Programs: Ph.D. programs in Ireland are research-focused doctoral programs that typically last for three to four years for full-time students. Part-time Ph.D. students may take longer to complete their studies, usually around five to six years. The duration of a Ph.D. program can also depend on factors such as the nature of the research project and the student’s progress.

It’s essential to check the specific duration of your chosen postgraduate program with the university or institution offering the course, as program lengths can vary depending on factors such as course structure, mode of study (full-time or part-time), and academic requirements.