[
    {
        "pk": 1, 
        "model": "auth.user", 
        "fields": {
            "username": "superuser", 
            "first_name": "", 
            "last_name": "", 
            "is_active": true, 
            "is_superuser": true, 
            "is_staff": true, 
            "last_login": "2013-04-04T15:49:45.124", 
            "groups": [], 
            "user_permissions": [], 
            "password": "pbkdf2_sha256$10000$Vw3gwIhoOVr8$68fQuHZsNisBwiVtazRkif/8ZR48YCpjlBRopriNiCg=", 
            "email": "superuser@example.com", 
            "date_joined": "2013-04-04T15:49:45.124"
        }
    }
]
[
    {
        "pk": 1, 
        "model": "auth.user", 
        "fields": {
            "username": "superuser", 
            "first_name": "", 
            "last_name": "", 
            "is_active": true, 
            "is_superuser": true, 
            "is_staff": true, 
            "last_login": "2013-04-04T15:49:45.124Z",
            "groups": [], 
            "user_permissions": [], 
            "password": "pbkdf2_sha256$10000$Vw3gwIhoOVr8$68fQuHZsNisBwiVtazRkif/8ZR48YCpjlBRopriNiCg=", 
            "email": "superuser@example.com", 
            "date_joined": "2013-04-04T15:49:45.124Z"
        }
    }
]

Use timezone aware datetimes in fixture
Use timezone aware datetimes in fixture
