YOU SAID:

Ugh... Who's calling at this hour?

INTO JAPANESE

ええと...この時間に誰が電話しているの？

BACK INTO ENGLISH

Well... who is calling at this time?

INTO JAPANESE

さて...この時誰が電話しているの？

BACK INTO ENGLISH

Now... who is calling at this time?

INTO JAPANESE

さて...今、誰が電話しているの？

BACK INTO ENGLISH

Well... who is calling now?

INTO JAPANESE

さて...今、誰が電話していますか？

BACK INTO ENGLISH

Now... who is calling now?

INTO JAPANESE

今...誰が今電話しているのですか？

BACK INTO ENGLISH

Now... who is calling now?