I'm wondering how much time does it takes pain after circumcision ?

Circumcision pain: Pain after circumcision is most significant in the 1st two weeks after the procedure. This is variable and can be present up to 4-6 weeks post procedure in rare cases.

Dr Ali agreed

Depends...: For most, the pain after uneventful circumcision is during the first 3 days, but managing such pain always starts out with preoperative counseling to stress realistic expectation including personal mental stability, pain tolerance, possible occasional unwanted bleeding or infection. Nevertheless, most do well in 1-2 weeks for expected pain and can resume sex in < 1 month anticipating sensitivity.