fix(tags): parse timezone information from a tag

gto/tag.py

@@ -1,6 +1,6 @@
+import datetime
 import os
 import re
-from datetime import datetime
 from enum import Enum
 from typing import FrozenSet, Iterable, Optional, Union
 
@@ -124,17 +124,18 @@ class Tag(BaseModel):
     name: str
     version: Optional[str]
     stage: Optional[str]
-    created_at: datetime
+    created_at: datetime.datetime
     tag: GitTag
 
     class Config:
         arbitrary_types_allowed = True
 
 
 def parse_tag(tag: GitTag):
+    tz = datetime.timezone(datetime.timedelta(minutes=int(tag.tag_time_offset)))
     return Tag(
         tag=tag,
-        created_at=datetime.fromtimestamp(tag.tag_time),
+        created_at=datetime.datetime.fromtimestamp(tag.tag_time, tz=tz),
         **parse_name(tag.name),
     )
 

tests/test_tag.py

@@ -3,7 +3,7 @@
 
 from gto.constants import Action
 from gto.exceptions import RefNotFound, TagExists
-from gto.tag import create_tag, find, name_tag, parse_name
+from gto.tag import create_tag, find, name_tag, parse_name, parse_tag
 
 
 def test_name_tag(scm: Git):
@@ -148,3 +148,11 @@ def test_create_tag_repeated_tagname(scm: Git):
 def test_lightweight_tag(scm: Git):
     scm.tag("lightweight-tag@v0.0.1")
     assert find(scm=scm) == []
+
+
+@pytest.mark.usefixtures("repo_with_commit")
+def test_parse_tag_created_at_timezone(scm: Git):
+    create_tag(scm, "nn#prod", rev="HEAD", message="msg")
+    tag = parse_tag(scm.get_tag("nn#prod"))
+    d = tag.created_at
+    assert d.tzinfo is not None and d.tzinfo.utcoffset(d) is not None