Small changes

Author: leandrodamascena

docs/core/logger.md

@@ -570,9 +570,11 @@ You can change the order of [standard Logger keys](#standard-structured-keys) or
 
 #### Setting timestamp to custom Timezone
 
-By default, this Logger and the standard logging library emit records with the default AWS Lambda timestamp in UTC.
+By default, this Logger and the standard logging library emit records with the default AWS Lambda timestamp in **UTC**.
 
-However, if you want to use your preferred timezone to format your log instead, you can use the timezone environment variable `TZ`: Either set it as AWS Lambda environment variable, or setup this value directly in your Lambda function.
+<!-- markdownlint-disable MD013 -->
+If you prefer to log in a specific timezone, you can configure it by setting the `TZ` environment variable. You can do this either as an AWS Lambda environment variable or directly within your Lambda function settings. [Click here](https://docs.aws.amazon.com/lambda/latest/dg/configuration-envvars.html#configuration-envvars-runtime){target="_blank"} for a comprehensive list of available Lambda environment variables.
+<!-- markdownlint-enable MD013 -->
 
 ???+ tip
     `TZ` environment variable will be ignored if `utc` is set to `True`

tests/functional/test_logger_powertools_formatter.py

@@ -291,15 +291,17 @@ def test_log_in_utc(service_name):
     logger = Logger(service=service_name, utc=True)
 
     # THEN logging formatter time converter should use gmtime fn
-    assert logger._logger.handlers[0].formatter.converter == time.gmtime
+    assert logger.handlers[0].formatter.converter == time.gmtime
 
 
-def test_log_wo_utc(service_name):
+def test_log_with_localtime(service_name):
     # GIVEN a logger where UTC is false
-    logger = Logger(service=service_name, utc=False)
+    logger = Logger(service=service_name, utc=True)
+
+    print(logger.handlers[0].formatter.converter)
 
     # THEN logging formatter time converter should use localtime fn
-    assert logger._logger.handlers[0].formatter.converter == time.localtime
+    assert logger.handlers[0].formatter.converter == time.localtime
 
 
 @pytest.mark.parametrize("message", ["hello", 1.10, {}, [], True, object()])