diff --git a/admin/dashboard/blueprints/plugin_schedules.py b/admin/dashboard/blueprints/plugin_schedules.py
index 8e20734..aed8c00 100644
--- a/admin/dashboard/blueprints/plugin_schedules.py
+++ b/admin/dashboard/blueprints/plugin_schedules.py
@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+from datetime import datetime
 from flask import Blueprint, current_app, jsonify, render_template, request
 
 from .auth import login_required
@@ -7,6 +8,25 @@ from .auth import login_required
 plugin_schedules_bp = Blueprint("plugin_schedules", __name__, url_prefix="/plugin_schedules")
 
 
+def _normalize_datetime_text(value):
+    """统一时间文本格式为 `YYYY-MM-DD HH:MM:SS`。
+
+    兼容场景：
+    1. 数据库返回 datetime 对象；
+    2. 已经是 ISO 字符串（包含 T）；
+    3. 兜底保留原值字符串，避免因为解析失败把数据抹掉。
+    """
+    if value is None:
+        return value
+    if isinstance(value, datetime):
+        return value.strftime("%Y-%m-%d %H:%M:%S")
+    text = str(value)
+    # 先处理常见 ISO 格式，直接去掉 T 并截到秒，避免前端显示异常。
+    if "T" in text:
+        return text.replace("T", " ")[:19]
+    return text
+
+
 @plugin_schedules_bp.route("/")
 @login_required
 def page_plugin_schedules():
@@ -18,6 +38,11 @@ def page_plugin_schedules():
 def api_list_schedules():
     server = current_app.dashboard_server
     data = server.plugin_schedule_manager.list_schedules_with_runtime()
+    # 后端统一格式化时间字段，避免前端出现 Fri, 17 Apr 2026 ... 这类 RFC 时间串。
+    for row in data:
+        for key in ("next_run_at", "last_run_at", "created_at", "updated_at"):
+            if key in row:
+                row[key] = _normalize_datetime_text(row.get(key))
     return jsonify({"success": True, "data": data})
 
 
@@ -74,6 +99,10 @@ def api_schedule_logs(schedule_id: int):
     server = current_app.dashboard_server
     limit = int(request.args.get("limit", 100))
     logs = server.plugin_schedule_manager.get_logs(schedule_id, limit=limit)
+    # 日志时间统一成固定格式，避免被 Flask JSON 序列化成 RFC 字符串。
+    for row in logs:
+        if "triggered_at" in row:
+            row["triggered_at"] = _normalize_datetime_text(row.get("triggered_at"))
     return jsonify({"success": True, "data": logs})