YOU SAID:
The day I turn twenty three I'm getting married
INTO JAPANESE
23歳になった日結婚します
BACK INTO ENGLISH
I will get married the day I turn 23
INTO JAPANESE
23歳になった日に結婚します
BACK INTO ENGLISH
I will get married on the day I turn 23
INTO JAPANESE
23歳になった日に結婚します
BACK INTO ENGLISH
I will get married on the day I turn 23
Okay, I get it, you like Translation Party.