后端统一时区为 UTC

app/services/leakage_identifier.py

@@ -23,6 +23,7 @@ from app.services.tjnetwork import (
     get_network_link_nodes,
     get_network_node_coords,
 )
+from app.services.time_api import extract_date, parse_utc_time, utc_now
 
 DEFAULT_N_WORKERS = max(1, min((os.cpu_count() or 1) - 1, 4))
 
@@ -119,7 +120,7 @@ def run_leakage_identification(
         scheme_start_time = (
             _to_datetime(scada_start).isoformat()
             if scada_start is not None
-            else datetime.now().isoformat()
+            else utc_now().isoformat()
         )
         scheme_detail = {
             "network": network,
@@ -177,7 +178,7 @@ def run_leakage_identification(
 def list_leakage_identify_schemes(
     network: str, query_date: datetime | str | None = None
 ) -> list[dict[str, Any]]:
-    parsed_date = _to_datetime(query_date).date() if query_date is not None else None
+    parsed_date = extract_date(query_date, field_name="query_date") if query_date is not None else None
     return query_leakage_identify_schemes(
         name=network, network=network, query_date=parsed_date
     )
@@ -509,9 +510,7 @@ def _build_observed_pressure_from_scada(
 
 
 def _to_datetime(value: datetime | str) -> datetime:
-    if isinstance(value, datetime):
-        return value
-    return datetime.fromisoformat(value)
+    return parse_utc_time(value)
 
 
 def _prepare_leakage_inp(network: str) -> str: