Adjusting time zones using datetime python library-CodePudding

I have the input as a Unix timestamp, which is generated according to UTC time. I need to convert it to human readable time and then adjust the time zones, which is 02:00.

Using the datetime library, I have tried:

from datetime import datetime
import pytz

time = "1657893300324"

logtime = datetime.utcfromtimestamp(int(time)/1000).isoformat(sep=',', timespec='milliseconds')
timezone = pytz.timezone('Europe/Berlin')
d_aware = timezone.localize(int(logtime))
print(d_aware)

error thrown in this process:

ValueError: invalid literal for int() with base 10: '2022-07-15,13:55:00.324'

Another method:

from datetime import datetime
from datetime import timedelta

time = "1657893300324"

logtime = datetime.utcfromtimestamp(int(time)/1000).isoformat(sep=',', timespec='milliseconds')
two_hrs = datetime.timedelta(hours=2)
local_time = logtime   two_hrs
print(local_time)

error thrown:

AttributeError: type object 'datetime.datetime' has no attribute 'timedelta'

CodePudding user response：

You can do this :

time = "1657893300324"
timeInSeconds = int(time[0:10])

#add the 2 hours in seconds
timeInSeconds  = 3600*2 #there is 3600 seconds in one hour

#and the convert it to a datetime object in python
date = datetime.datetime.fromtimestamp(timeInSeconds)

#and print it readable
print(date.isoformat())
#or even better : 
s = str(date.month)   "-" str(date.day)   "-"   str(date.year)   " at "   str(date.hour)   ":"   str(date.minute)

Hope it helps ! :)

CodePudding user response：

convert the Unix timestamp to UTC datetime, then change the timezone using astimezone.

from datetime import datetime, timezone
import pytz

tz = pytz.timezone('Europe/Berlin')
t = "1657893300324"

logtime = datetime.fromtimestamp(int(t)/1000, timezone.utc)
d_aware = logtime.astimezone(tz)

print(d_aware)
# 2022-07-15 15:55:00.324000 02:00

Note: pytz is deprecated. Use Python 3.9's zoneinfo instead, example.