How to convert a UTC date string to timezone aware datetime object in Python3?

Question

I have a UTC format date string represented as :

ds = "2019-06-15 17:18:06 UTC"

I am trying to convert it into a python utc datetime object like this :

d = datetime.strptime(ds,'%Y-%m-%dT%H:%M:%SZ')

However I am getting the following error :

ValueError: time data '2019-06-15 17:18:06 UTC' does not match format '%Y-%m-%dT%H:%M:%SZ'

So what is the correct format to pass, so that I get a datetime object in UTC timezone?

Rakesh · Accepted Answer · 2019-06-15 19:23:50Z

1

Use format %Y-%m-%d %H:%M:%S %Z

Ex:

import datetime
import pytz

ds = "2019-06-15 17:18:06 UTC"
nDate = datetime.datetime.strptime(ds,'%Y-%m-%d %H:%M:%S %Z') 
timezone = pytz.timezone(ds.split()[-1])
d_aware = timezone.localize(nDate)
print(d_aware)
print(d_aware.tzinfo)

Output:

2019-06-15 17:18:06+00:00
UTC

answered Jun 15, 2019 at 19:23

Rakesh

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Asnim P Ansari · Accepted Answer · 2019-06-15 18:29:13Z

0

The format string you are currently using doesn't match with the datetime string format which you provided. That's why its throwing error.

 datetime.strptime(ds,'%Y-%m-%d %H:%M:%S UTC')

answered Jun 15, 2019 at 18:29

Asnim P Ansari

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1 Comment

Imperishable Night Over a year ago

Using this format string, the resulting object is not timezone aware. Of course if you know your input is UTC, this can be handled manually, but is there a way to automatically parse the UTC marker? Notice that using d.strftime('%Y-%m-%d %H:%M:%S %Z') on a timezone aware object will generate the UTC marker, and datetime.strptime(ds,'%Y-%m-%d %H:%M:%S %Z') will consume it, but the resulting object is not timezone aware.

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