YOU SAID:

im going to have the best day in the entire world.

INTO JAPANESE

私は全世界で最高の日を過ごすつもりです。

BACK INTO ENGLISH

I am going to have the best day in the whole world.

INTO JAPANESE

私は全世界で最高の日を過ごすつもりです。

BACK INTO ENGLISH

I am going to have the best day in the whole world.