如何仅在 Django 中分别获取当前日期和当前时间？

Question

I came across an interesting situation when using this class:

class Company(models.Model):
    date = models.DateField()
    time = models.TimeField()

c = Company(date=datetime.datetime.now(), time=datetime.datetime.now()) 

Django decides to use DATETIME_INPUT_FORMATS defined within the formats.py file. Which makes sense, because I am passing in a datetime.now() to both fields.

I think I could make Django to use DATE_INPUT_FORMATS and TIME_INPUT_FORMATS respectively, if I passed in only the current date and current time in.

Something like this:

c = Company(date=datetime.date.now(), time=datetime.time.now()) 

But this obviously throws an exception as now doesn't exist like that. Is there a different way to achieve this?

Answer 1

For the date, you can use datetime.date.today() or datetime.datetime.now().date() .

For the time, you can use datetime.datetime.now().time() .

---

However, why have separate fields for these in the first place? Why not use a single DateTimeField ?

You can always define helper functions on the model that return the .date() or .time() later if you only want one or the other.

Answer 2

import datetime
datetime.datetime.now().strftime ("%Y%m%d")
20151015

For the time

from time import gmtime, strftime
showtime = strftime("%Y-%m-%d %H:%M:%S", gmtime())
print showtime
2015-10-15 07:49:18

Answer 3

import datetime

datetime.date.today()  # Returns 2018-01-15

datetime.datetime.now() # Returns 2018-01-15 09:00

Answer 4

 import datetime

Current Date and time

     print(datetime.datetime.now())
     #2019-09-08 09:12:12.473393

Current date only

     print(datetime.date.today())
     #2019-09-08

Current year only

     print(datetime.date.today().year)
     #2019

Current month only

     print(datetime.date.today().month)
     #9

Current day only

     print(datetime.date.today().day)
     #8

Answer 5

Another way to get datetime UTC with milliseconds.

from datetime import datetime

datetime.utcnow().isoformat(sep='T', timespec='milliseconds') + 'Z'

2020-10-29T14:46:37.655Z

Answer 6

A related info, to the question...

In django, use timezone.now() for the datetime field, as django supports timezone , it just returns datetime based on the USE TZ settings, or simply timezone 'aware' datetime objects

For a reference, I've got TIME_ZONE = 'Asia/Kolkata' and USE_TZ = True ,

from django.utils import timezone
import datetime

print(timezone.now())  # The UTC time
print(timezone.localtime())  # timezone specified time, 
print(datetime.datetime.now())  # default local time

# output
2020-12-11 09:13:32.430605+00:00
2020-12-11 14:43:32.430605+05:30  # IST is UTC+5:30
2020-12-11 14:43:32.510659

refer timezone settings and Internationalization and localization in django docs for more details.