If your schedule feels overwhelming, remember that God is not keeping score of minutes. He desires relationships. A short prayer while driving, a verse read during lunch, or a moment of gratitude before bed can draw your heart closer to Him. I believe the best time to give a little time to God is first thing in the morning.
Rather than focusing on how much time you have, focus on being faithful with the time you do have. Small, consistent moments with God often grow into a deeper and richer walk with Him.
"Be still, and know that I am God." — Psalm 46:10