@Sanaz.1987 , while you wait for 7o9's reply - approval for a green card based on asylum is all over the place as well. Some people wait for 1 year or more, while some people get it in 3-4 months. It depends on a lot of different factors and your individual case, and theres' no way to tell for sure. Also, not everyone gets called back for an interview for a GC. Actually, people who get called for an interview for an asylum-based GC are the minority. If it's been more than 1 year, you could reach out to USCIS for a case update and see if they tell you where your application is at.
Here's the site for the Asylee Adjustment Manual: https://www.uscis.gov/policy-manual/volume-7-part-m
If you click on "Chapter 5 - Adjudication Procedures," you can see the reasons why some asylee's will get called for an interview for a GC.
Here's the site for the Asylee Adjustment Manual: https://www.uscis.gov/policy-manual/volume-7-part-m
If you click on "Chapter 5 - Adjudication Procedures," you can see the reasons why some asylee's will get called for an interview for a GC.