Daniel prayed three times a day. Peter and John went to the temple at their hour of prayer. Jesus prayed early in the morning. David spoke of his night time meditation. Paul and Silas prayed at the sixth hour.
Nothing can substitute for prayer.
I have found in my own life that I must prioritize everything else around prayer. God is waiting for his children to speak to him. It is important to me that God recognizes my voice. I want him to know me because of my time I spend with him in prayer. I have a friend who lives in Wisconsin that I had not spoken to in eight months or more.