You don’t need hours a day - just consistent, high-quality exposure for 10–30 minutes daily will move the needle more than marathon study sessions.

The best daily routine is the one you can actually stick to.
For most learners:
The real answer depends on your goals:
It’s not just about time. It’s about what you do with that time. Focus on:
Even better, stack it with habits you already have. Listen while walking, cooking, or commuting. That’s how you turn language practice into part of your lifestyle - not just another to-do list item.