YOU SAID:
I watch TV from 8 to 9PM
INTO JAPANESE
私は午後8時から9時までテレビを見ます
BACK INTO ENGLISH
I watch TV from 8 to 9 pm.
INTO JAPANESE
私は午後8時から9時までテレビを見ます。
BACK INTO ENGLISH
I watch TV from 8 to 9 pm.
That didn't even make that much sense in English.