YOU SAID:
I am available tomorrow at 2:30 for 20 minutes. Thanks.
INTO JAPANESE
明日の2時半に20分掛けています。よろしくお願いします。
BACK INTO ENGLISH
I will call you at 2: 30 tomorrow for 20 minutes. Thank you very much.
INTO JAPANESE
明日の2時半に20分ほど電話します。どうもありがとうございました。
BACK INTO ENGLISH
I will call you about 20 minutes at 2: 30 tomorrow. Thank you very much.
INTO JAPANESE
明日の2時半頃に20分ほど電話します。どうもありがとうございました。
BACK INTO ENGLISH
I will call you about 20 minutes around 2: 30 tomorrow. Thank you very much.
INTO JAPANESE
明日の2時半頃20分ぐらいに電話します。どうもありがとうございました。
BACK INTO ENGLISH
I will call you at about 2: 30 tomorrow. Thank you very much.
INTO JAPANESE
明日の2時半頃に電話します。どうもありがとうございました。
BACK INTO ENGLISH
I will call you around 2: 30 tomorrow. Thank you very much.
INTO JAPANESE
明日の2時半頃に電話します。どうもありがとうございました。
BACK INTO ENGLISH
I will call you around 2: 30 tomorrow. Thank you very much.
That didn't even make that much sense in English.