How many years did david not repent?

David is traditionally understood to have not repented for about a year after his sin with Bathsheba, which included adultery and orchestrating her husband's death. This period is often associated with the time between the events and Nathan the prophet confronting him, as described in 2 Samuel 11-12. The exact duration is not specified in the biblical text, but many interpretations suggest it was roughly one year before his repentance in Psalm 51.