Merge pull request #1761 from sleeper/fix_local_time

fix: resolve ZoneInfo error by using IANA-compliant local timezone

Author: olaservo

src/time/pyproject.toml

@@ -20,6 +20,7 @@ dependencies = [
     "mcp>=1.0.0",
     "pydantic>=2.0.0",
     "tzdata>=2024.2",
+    "tzlocal>=5.3.1"
 ]
 
 [project.scripts]

src/time/src/mcp_server_time/server.py

@@ -4,6 +4,8 @@
 from typing import Sequence
 
 from zoneinfo import ZoneInfo
+from tzlocal import get_localzone_name  # ← returns "Europe/Paris", etc.
+
 from mcp.server import Server
 from mcp.server.stdio import stdio_server
 from mcp.types import Tool, TextContent, ImageContent, EmbeddedResource
@@ -40,9 +42,9 @@ def get_local_tz(local_tz_override: str | None = None) -> ZoneInfo:
         return ZoneInfo(local_tz_override)
 
     # Get local timezone from datetime.now()
-    tzinfo = datetime.now().astimezone(tz=None).tzinfo
-    if tzinfo is not None:
-        return ZoneInfo(str(tzinfo))
+    local_tzname = get_localzone_name()
+    if local_tzname is not None:
+        return ZoneInfo(local_tzname)
     raise McpError("Could not determine local timezone - tzinfo is None")