很简单，如果你有一个datetimefield你可以使用datetime。date。today()

context['now'] = Mymodel.objects.filter(date_time_field=datetime.date.today())

YourModel.objects.filter(datetime_published__year='2008', 
                         datetime_published__month='03', 
                         datetime_published__day='27')

//在注释后编辑

YourModel.objects.filter(datetime_published=datetime(2008, 03, 27))

不工作，因为它创建了一个时间值设置为0的datetime对象，因此数据库中的时间不匹配。

下面是我使用ipython的timeit函数得到的结果:

from datetime import date
today = date.today()

timeit[Model.objects.filter(date_created__year=today.year, date_created__month=today.month, date_created__day=today.day)]
1000 loops, best of 3: 652 us per loop

timeit[Model.objects.filter(date_created__gte=today)]
1000 loops, best of 3: 631 us per loop

timeit[Model.objects.filter(date_created__startswith=today)]
1000 loops, best of 3: 541 us per loop

timeit[Model.objects.filter(date_created__contains=today)]
1000 loops, best of 3: 536 us per loop

Contains似乎更快。

这产生了与使用__year， __month，和__day相同的结果，并且似乎对我有用:

YourModel.objects.filter(your_datetime_field__startswith=datetime.date(2009,8,22))

很简单，如果你有一个datetimefield你可以使用datetime。date。today()

context['now'] = Mymodel.objects.filter(date_time_field=datetime.date.today())

嗯. .我的解决方案是有效的:

Mymodel.objects.filter(date_time_field__startswith=datetime.datetime(1986, 7, 28))