gistfile1.txt

// Model
module.exports = {
    connection: '',
    tableName: 'events',
    attributes: {
        start_time: {
            type: 'datetime',
            required: true,
            before: function() {
                return this.end_time;
            },
            columnName: 'start_time'
        },
        end_time: {
            type: 'datetime',
            required: true,
            after: function() {
                return this.start_time;
            },
            columnName: 'end_time'
        }
    }
};

// URI hit
POST http://127.0.0.1:1337/event/create

// POST data
{
	"user_id": "1",
	"name": "Test Event",
	"timezone": "Chicago",
	"location": "Chicago",
	"start_time": "Aug, 13, 2014 11:00 Am",
	"end_time": "Aug, 13, 2014 11:01 Am",
	"status": "unverified"
}

// Response
{
    "error": "E_VALIDATION",
    "status": 400,
    "summary": "1 attribute is invalid",
    "model": "Event",
    "invalidAttributes": {
        "end_time": [
            {
                "rule": "after",
                "message": "\"after\" validation rule failed for input: Wed Aug 13 2014 11:01:00 GMT-0500 (CDT)"
            }
        ]
    }
}