YQ-4289 fixed aws auth in timezones (#18930)

Author: GrigoriyPA

ydb/core/external_sources/s3/ut/ya.make

@@ -4,6 +4,7 @@ NO_CHECK_IMPORTS()
 
 DATA(arcadia/ydb/core/external_sources/s3/ut/docker-compose.yml)
 ENV(COMPOSE_PROJECT_NAME=s3)
+ENV(TZ="UTC+13")
 
 IF (AUTOCHECK) 
     # Temporarily disable these tests due to infrastructure incompatibility

ydb/library/yql/providers/common/http_gateway/ya.make

@@ -1,5 +1,7 @@
 LIBRARY()
 
+ENV(TZ="UTC+23")
+
 SRCS(
     yql_aws_signature.cpp
     yql_http_default_retry_policy.cpp

ydb/library/yql/providers/common/http_gateway/yql_aws_signature.cpp

@@ -67,7 +67,7 @@ TString TAwsSignature::GetXAmzContentSha256() const {
 }
 
 TString TAwsSignature::GetAmzDate() const {
-    return CurrentTime.FormatLocalTime("%Y%m%dT%H%M%SZ");
+    return CurrentTime.FormatGmTime("%Y%m%dT%H%M%SZ");
 }
 
 TString TAwsSignature::GetContentType() const {
@@ -112,7 +112,7 @@ TString TAwsSignature::CalcSignature() const {
 }
 
 TString TAwsSignature::GetDate() const {
-    return CurrentTime.FormatLocalTime("%Y%m%d");
+    return CurrentTime.FormatGmTime("%Y%m%d");
 }
 
 TString TAwsSignature::HmacSHA256(TStringBuf key, TStringBuf data) {