YOU SAID:
I wonder what time dinner is tonight.
INTO JAPANESE
今夜の時間ディナーは何だろうか。
BACK INTO ENGLISH
What time dinner tonight?
INTO JAPANESE
どのような時間の夕食今夜か。
BACK INTO ENGLISH
What time's dinner tonight?
INTO JAPANESE
今夜は何時ですか?
BACK INTO ENGLISH
What is tonight?
INTO JAPANESE
今夜は何ですか?
BACK INTO ENGLISH
What is it tonight?
INTO JAPANESE
今夜は何ですか?
BACK INTO ENGLISH
What is it tonight?
That didn't even make that much sense in English.