how often does bitcoin adjustment mechanism occur

Bitcoin's difficulty adjustment mechanism occurs every 2,016 blocks, which corresponds to roughly every two weeks. This automatic adjustment recalibrates the mining difficulty based on the time it took to mine the previous 2,016 blocks, aiming to maintain an average block creation time of around 10 minutes. If blocks were mined faster than this target, the difficulty increases; if slower, it decreases. This process ensures the stability and security of the Bitcoin network despite fluctuations in total mining power (hash rate).