YOU SAID:

when is it a good time to have a good time?

INTO JAPANESE

楽しい時間を過ごすのはいつですか？

BACK INTO ENGLISH

When do you have fun?

INTO JAPANESE

いつ楽しいですか？

BACK INTO ENGLISH

When is it fun?

INTO JAPANESE

楽しい時はいつですか？

BACK INTO ENGLISH

When do you have fun?

INTO JAPANESE

いつ楽しいですか？

BACK INTO ENGLISH

When is it fun?

INTO JAPANESE

楽しい時はいつですか？