YOU SAID:
Can't wait for this day to end.
INTO JAPANESE
この日が終わるのを待つことはできません。
BACK INTO ENGLISH
I can't wait for this day to end.
INTO JAPANESE
この日が終わるのが待ちきれません。
BACK INTO ENGLISH
I can't wait for this day to end.
That didn't even make that much sense in English.