If you qualify, your license must remain in conditional status for at least 60 days. (resourcetraining.org)
However, if you complete the DDP and have a conditional license, you may continue driving in conditional status during the remainder of the revocation period. (resourcetraining.org)
However, if you complete the IDP and have a conditional license, you may continue driving in conditional status during the remainder of the revocation period. (dmv.ny.gov)