YOU SAID:
I am sitting on a chair on a Wednesday morning
INTO JAPANESE
私は水曜日の朝に椅子に座っています
BACK INTO ENGLISH
I'm sitting in a chair on Wednesday morning
INTO JAPANESE
私は水曜日の朝に椅子に座っています
BACK INTO ENGLISH
I'm sitting in a chair on Wednesday morning
That didn't even make that much sense in English.