后端统一时区为 UTC

app/services/burst_detection.py

@@ -14,6 +14,7 @@ from app.services.scheme_management import (
     store_scheme_info,
 )
 from app.services.tjnetwork import get_all_scada_info
+from app.services.time_api import extract_date, parse_utc_time, utc_now
 
 
 def run_burst_detection(
@@ -241,7 +242,7 @@ def list_burst_detection_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_burst_detection_schemes(
         name=network,
         network=network,
@@ -269,7 +270,7 @@ def _store_burst_detection_scheme(
     if scheme_name_exists(network, scheme_name):
         raise ValueError(f"方案名称已存在: {scheme_name}")
 
-    now_iso = datetime.now().isoformat()
+    now_iso = utc_now().isoformat()
     scheme_detail = {
         "network": network,
         "sensor_nodes": payload.get("sensor_nodes", []),
@@ -426,6 +427,4 @@ 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)