YOU SAID:

Hello, how have you been today?

INTO JAPANESE

こんにちは、今日はどうでしたか？

BACK INTO ENGLISH

Hi, how was your day?

INTO JAPANESE

- 今日はどうだった？

BACK INTO ENGLISH

- How was your day?

INTO JAPANESE

- きょうはどうだった？

BACK INTO ENGLISH

- How was your day?