Por que djangoDateTimeFieldrestaurartzinfo endatetime a<utc>?

A continuación se muestra mi código de prueba.

¿Es normal o está mal?

Si es normal, ¿cuál es el motivo?

models.py
class Date(models.Model):
  datetime = models.DateTimeField()


settings.py
TIME_ZONE = 'Asia/Seoul'
USE_TZ = True


test.py
from django.utils import timezone

datetime = timezone.localtime(timezone.localtimezone.now())
#now datetime is datetime.datetime(2015, 10, 22, 20, 31, 56, 248000, tzinfo=<DstTzInfo 'Asia/Seoul' KST+9:00:00 STD>)

models.Date(datetime=datetime).save()
#If I check datebase, It shows 2015-10-22 11:31:56.248000

model.Date.object.get(..)
#It returns datetime.datetime(2015, 10, 22, 11, 31, 56, 248000, tzinfo=<UTC>)

Espero tiendas django2015-10-22 20:31:56.248000 y volverdatetime.datetime(2015, 10, 22, 20, 31, 56, 248000, tzinfo=<DstTzInfo 'Asia/Seoul' KST+9:00:00 STD>)

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solíaSqlite.