I use Bitcoin Core API and I can retrieve a block by header hash as parameter using the getblock method.
I need to get a block by given timestamp (median time).
I found some solution.
difference_in_blocks = round((last_block_mediantime - given_timestamp) / 600sec)
desired_block = last_block_heigth + 1 - difference_in_blocks
600 seconds - average time of a block mining (I assume this value is a constant)
Is there a specific API method or a better, more accurate way to do this?