Getting 'fractional' seconds in date time for some reason... need to lose the extra 2 digits

Using codeigniter (though I suppose doesn't really matter).
I pass a user_id to my model to get the correct time for their timezone prior to inserting into my db. When I echo out what is being created, I get the extra 2 digits for some inexplicable reason:

2014-04-14 10:40:3024

//passing the user id
	public function get_time($user_id)
	{
		return $this->db
			->select('timezone')
			->from('user')
			->where('id', $user_id)
			->get()->row();
	}

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Any idea what is going on and how I could correct this?