My 4mths old baby used to sleep at 8plus to 9pm and she wake up at 6 or 7am everyday. Tried dragging her sleeping time by playing with her but can't, any solutions?

I dun think it will work. I did tried many times so tat he can wake up at a later timing but his body clock will juz wake him up at tat specific timing. As long as ur baby has sufficient slp, it is gd enough alrdy.