diff --git a/yuthon_ai_agent/__manifest__.py b/yuthon_ai_agent/__manifest__.py
index ef3cd5e23..f16df757e 100644
--- a/yuthon_ai_agent/__manifest__.py
+++ b/yuthon_ai_agent/__manifest__.py
@@ -15,7 +15,7 @@
     'author': 'pengyuthon',
     'version': '17.0.2.2.2',
     'license': 'LGPL-3',
-    'depends': ['base', 'web', 'hr', 'documents', 'sh_backmate_theme_adv_enterprise'],
+    'depends': ['base', 'web', 'hr', 'documents'],
     'data': [
         'security/ai_security.xml',
         'security/ir.model.access.csv',
diff --git a/yuthon_datetime_rounding/__init__.py b/yuthon_datetime_rounding/__init__.py
new file mode 100644
index 000000000..0650744f6
--- /dev/null
+++ b/yuthon_datetime_rounding/__init__.py
@@ -0,0 +1 @@
+from . import models
diff --git a/yuthon_datetime_rounding/__manifest__.py b/yuthon_datetime_rounding/__manifest__.py
new file mode 100644
index 000000000..8e367c419
--- /dev/null
+++ b/yuthon_datetime_rounding/__manifest__.py
@@ -0,0 +1,27 @@
+{
+    'name': 'Yuthon Datetime Rounding',
+    'version': '17.0.1.0.0',
+    'category': 'Technical',
+    'summary': '时间选择器默认分钟精确(rounding=1)，可用系统参数 yuthon_datetime.rounding 调整',
+    'description': """
+Yuthon Datetime Rounding
+========================
+Odoo 时间选择器(DateTimePicker)默认 rounding=5（分钟只能选 0/5/10/.../55），
+导致"选05变04"之类的分钟精度困惑。
+
+本模块把默认改为分钟精确(rounding=1)：
+- 全局默认值：系统参数 yuthon_datetime.rounding（1=分钟精确，5=每5分钟，15=每15分钟...），
+  修改后重新登录或刷新页面生效；
+- 视图里字段若显式配置 options="{'rounding': N}"，则以视图设置为准（不会被覆盖）。
+""",
+    'depends': ['web'],
+    'data': [],
+    'assets': {
+        'web.assets_backend': [
+            'yuthon_datetime_rounding/static/src/js/datetime_picker.js',
+        ],
+    },
+    'installable': True,
+    'application': False,
+    'auto_install': False,
+}
diff --git a/yuthon_datetime_rounding/models/__init__.py b/yuthon_datetime_rounding/models/__init__.py
new file mode 100644
index 000000000..9a5eb7187
--- /dev/null
+++ b/yuthon_datetime_rounding/models/__init__.py
@@ -0,0 +1 @@
+from . import ir_http
diff --git a/yuthon_datetime_rounding/models/ir_http.py b/yuthon_datetime_rounding/models/ir_http.py
new file mode 100644
index 000000000..d460d8beb
--- /dev/null
+++ b/yuthon_datetime_rounding/models/ir_http.py
@@ -0,0 +1,17 @@
+# -*- coding: utf-8 -*-
+"""把系统参数 yuthon_datetime.rounding 注入前端 session_info，供 JS 读取。"""
+from odoo import models
+
+
+class IrHttp(models.AbstractModel):
+    _inherit = 'ir.http'
+
+    def get_session_info(self):
+        res = super().get_session_info()
+        try:
+            rounding = int(self.env['ir.config_parameter'].get_param(
+                'yuthon_datetime.rounding', '1') or '1')
+        except Exception:
+            rounding = 1
+        res['yuthon_datetime_rounding'] = rounding
+        return res
diff --git a/yuthon_datetime_rounding/static/src/js/datetime_picker.js b/yuthon_datetime_rounding/static/src/js/datetime_picker.js
new file mode 100644
index 000000000..30a02b3eb
--- /dev/null
+++ b/yuthon_datetime_rounding/static/src/js/datetime_picker.js
@@ -0,0 +1,51 @@
+/** @odoo-module **/
+
+import { patch } from "@web/core/utils/patch";
+import { DateTimePicker } from "@web/core/datetime/datetime_picker";
+
+// yuthon_datetime_rounding v2（Odoo 16 / 17 通用）
+// ---------------------------------------------------------------------------
+// 目的：Odoo 时间选择器(DateTimePicker)默认 rounding=5（分钟只能选 0/5/10/.../55），
+// 导致"选05变04 / 选00变59"这类分钟精度困惑。
+// 本补丁把"未显式配置 rounding 的字段"默认改为分钟精确(rounding=1)：
+//   - 全局默认值来自系统参数 yuthon_datetime.rounding（1=分钟精确，5=每5分钟，15=每15分钟...），
+//     修改后重新登录或刷新页面（session_info 刷新）生效；
+//   - 视图里字段显式配置 options="{'rounding': N}" 且 N 非 5 时，尊重视图设置（不覆盖）。
+// 实现双保险：① 基类 setup 前修正 props.rounding，让基类初始计算即用新值；
+// ② setup 后按需重算 availableMinutes，兼容基类内部实现差异。
+// ---------------------------------------------------------------------------
+
+function getForcedRounding() {
+    const raw = odoo.session_info && odoo.session_info.yuthon_datetime_rounding;
+    const n = parseInt(raw, 10);
+    return Number.isFinite(n) && n > 0 ? n : 1;
+}
+
+function buildMinutes(step) {
+    const all = Array.from({ length: 60 }, (_, i) => [i, String(i).padStart(2, "0")]);
+    return step === 1 ? all : all.filter(([m]) => !(m % step));
+}
+
+patch(DateTimePicker.prototype, {
+    setup() {
+        const wasDefault =
+            this.props.rounding === undefined || this.props.rounding === 5;
+        if (wasDefault) {
+            this.props.rounding = getForcedRounding();
+        }
+        super.setup();
+        if (wasDefault && this.props.rounding > 0) {
+            this.availableMinutes = buildMinutes(this.props.rounding);
+        }
+    },
+    onPropsUpdated(props) {
+        if (typeof super.onPropsUpdated === "function") {
+            super.onPropsUpdated(props);
+        }
+        const isDefault =
+            props.rounding === undefined || props.rounding === 5;
+        if (isDefault && this.props.rounding > 0) {
+            this.availableMinutes = buildMinutes(this.props.rounding);
+        }
+    },
+});