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I have a datetime in utc time zone, for example:
utc_time = datetime.datetime.utcnow() And a pytz timezone object:
tz = timezone('America/St_Johns') What is the proper way to convert utc_time to the given timezone?
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Add the local time offset to the UTC time. For example, if your local time offset is -5:00, and if the UTC time is shown as 11:00, add -5 to 11. The time setting when adjusted for offset is 06:00 (6:00 A.M.). Note The date also follows UTC format.
The pytz package encourages using UTC for internal timezone representation by including a special UTC implementation based on the standard Python reference implementation in the Python documentation. The UTC timezone unpickles to be the same instance, and pickles to a smaller size than other pytz tzinfo instances.
This datetime object will have no timezone associated with it. Therefore assign the UTC timezone to this datetime object using replace(tzinfo=pytz. UTC) function. Convert the timezone of the datetime object to local timezone by calling the astimezone() function on datetime object.
I think I got it:
pytz.utc.localize(utc_time, is_dst=None).astimezone(tz) This line first converts the naive (time zone unaware) utc_time datetime object to a datetime object that contains a timezone (UTC). Then it uses the astimezone function to adjust the time according to the requested time zone.
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