After winter came, the weather became cold, the river was frozen, and the earth was frozen. You should try your best to protect your yang at this time, because cold will hurt it. Go to bed early and get up late at this time, and get up when you see the sun.
Therefore, the best schedule in winter is to get up at 7: 30 in the morning. If you don't go to work, you can sleep until after eight o'clock and go to bed around eight o'clock in the evening. This is good for your health.