日時はaddressed as suchであり、messages resourceに添付されています。
{
"account_sid": "ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
"api_version": "2010-04-01",
"body": "Hey test message",
"error_code": null,
"error_message": null,
"num_segments": "1",
"num_media": "0",
"date_created": "Mon, 16 Aug 2010 03:45:01 +0000",
"date_sent": "Mon, 16 Aug 2010 03:45:03 +0000",
"date_updated": "Mon, 16 Aug 2010 03:45:03 +0000",
"direction": "outbound-api",
"from": "+14158141829",
"price": "-0.02000",
"sid": "MMXXXXXXXXXXXXXXXXXXXXXXXXX",
"status": "sent",
"to": "+15558675309",
"uri": "/2010-04-01/Accounts/ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX/Messages/MMXXXXXXXXXXXXXXXXXXXXXXXXXXXec.json"
}