Python timezone using only modules available in AWS Lambda?

Question

I'm trying run this code adapted from this answer.

from datetime import datetime
from pytz import timezone
import pytz

def lambda_handler(event, context):

    date_format='%m/%d/%Y %H:%M:%S %Z'
    date = datetime.now(tz=pytz.utc)
    print('Current date & time is:', date.strftime(date_format))

    date = date.astimezone(timezone('US/Pacific'))

    print('Local date & time is  :', date.strftime(date_format))

I am running on AWS Lambda. I am getting this error:

Response:
{
  "errorMessage": "Unable to import module 'lambda_function': No module named 'pytz'",
  "errorType": "Runtime.ImportModuleError"
}

How can I fix this, using only imports available in AWS Lambda? I want to keep the code very minimalistic so that it can be copy-pasted directly into the AWS Console, without having to add instructions on how to setup packages etc.

This answer to another question may be helpful using dateutil.tz: stackoverflow.com/a/51231362/11234542 — r6ch3l
– r6ch3l, Commented Sep 17, 2019 at 20:37

MasterAler · Accepted Answer · 2021-03-15 08:34:53Z

6

If you don't have access to pytz in AWS Lambda, you can use python-dateutil.
In that case you can do:

import datetime
import dateutil

date_format='%m/%d/%Y %H:%M:%S %Z'

IST = dateutil.tz.gettz('Asia/Kolkata')
print('Current date & time is : ',datetime.datetime.now(tz=IST).strftime(date_format))

or

eastern = dateutil.tz.gettz('US/Eastern')
print('Current date & time is : ',datetime.datetime.now(tz=eastern).strftime(date_format))

Here's the preview: preview

edited Mar 15, 2021 at 8:34

MasterAler

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answered Mar 13, 2021 at 12:01

Harikesh Patel

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