YOU SAID:
today is the day i will find out when i got back home
INTO JAPANESE
今日は家に帰ったときにわかる日です
BACK INTO ENGLISH
Today is the day you know when you go home
INTO JAPANESE
今日は家に帰ったときに知っている日です
BACK INTO ENGLISH
Today is the day I know when I get home
INTO JAPANESE
今日は家に帰ったとき知っている日
BACK INTO ENGLISH
Today I know when I got home
INTO JAPANESE
今日は家に着いたときを知っています
BACK INTO ENGLISH
I know when I got home today
INTO JAPANESE
今日家に帰ったとき
BACK INTO ENGLISH
When I got home today
INTO JAPANESE
今日家に帰ったとき
BACK INTO ENGLISH
When I got home today
That didn't even make that much sense in English.