YOU SAID:
I wish it were Saturday already.
INTO JAPANESE
私はそれがすでに土曜日だったことを望みます。
BACK INTO ENGLISH
I hope it was already Saturday.
INTO JAPANESE
私はそれがもう土曜日だったことを願っています。
BACK INTO ENGLISH
I hope it was already Saturday.
That didn't even make that much sense in English.