import datetime
日付(datetime) -> 文字列
“{0:%Y-%m-%d %H:%M:%S}”.format(datetime.datetime.today())
文字列 -> 日付(datetime)
[POST] http://xxxxx/xxxx/?date=2015-04-20 11:44:25
p_date = request.POST[‘date’]
dt = datetime.datetime.strptime(p_date, ‘%Y-%m-%d %H:%M:%S’)