diff --git a/web/src/pages/MyKbs.tsx b/web/src/pages/MyKbs.tsx
index e767ffb16..7e57bd7c8 100644
--- a/web/src/pages/MyKbs.tsx
+++ b/web/src/pages/MyKbs.tsx
@@ -25,17 +25,16 @@ import {
   Td,
   Th,
   Tr,
+  localDate,
 } from "../ui";
 import { fetchMe } from "../authSession";
 
-const ymd = (iso: string) => iso.slice(0, 10);
-
 function joinInfo(row: MyKb): string {
   if (row.my_role === "owner") return S.account.deploymentAdmin;
   if (row.joined_at) {
     return row.added_by_name
-      ? S.account.addedBy(row.added_by_name, ymd(row.joined_at))
-      : S.account.joinedOn(ymd(row.joined_at));
+      ? S.account.addedBy(row.added_by_name, localDate(row.joined_at))
+      : S.account.joinedOn(localDate(row.joined_at));
   }
   return S.account.openToEveryone;
 }
diff --git a/web/src/pages/Review.tsx b/web/src/pages/Review.tsx
index 86ade8975..88e3a1eb7 100644
--- a/web/src/pages/Review.tsx
+++ b/web/src/pages/Review.tsx
@@ -48,6 +48,7 @@ import {
   SearchSelect,
   Status,
   cn,
+  localDate,
   type ChipTone,
 } from "../ui";
 
@@ -478,7 +479,7 @@ function MergeRow({
             ? S.review.mergedBy(merge.merged_by_name)
             : S.review.mergedByAi}
           {" · "}
-          {merge.created_at.slice(0, 10)}
+          {localDate(merge.created_at)}
           {merge.reason ? ` · ${escalationText(merge.reason)}` : ""}
         </div>
       </div>
@@ -523,7 +524,7 @@ function precedentText(p: AgentPrecedent): string {
       : p.action === "review.keep"
         ? S.review.agentPrecedentKept
         : S.review.agentPrecedentMerged;
-  const line = `${p.left} ≟ ${p.right} · ${verb} · ${p.at.slice(0, 10)}`;
+  const line = `${p.left} ≟ ${p.right} · ${verb} · ${localDate(p.at)}`;
   // 人写的那一句（0026）跟在后面：先例不只是结果
   return p.why ? `${line} · “${p.why}”` : line;
 }
@@ -596,8 +597,8 @@ function AgentRow({
       <div className="mt-2 flex items-center gap-2">
         <span className="text-fine text-ink-2">
           {d.decided_by_name
-            ? S.review.agentAnsweredBy(d.decided_by_name, (d.decided_at ?? d.created_at).slice(0, 10))
-            : d.created_at.slice(0, 10)}
+            ? S.review.agentAnsweredBy(d.decided_by_name, localDate(d.decided_at ?? d.created_at))
+            : localDate(d.created_at)}
         </span>
         <div className="ml-auto flex items-center gap-2 shrink-0">
           {/* 回答 agent 也能带一句理由（0026）——它走的正是人的裁决路径 */}
@@ -691,7 +692,7 @@ function DecisionRow({ e }: { e: ReviewHistoryEvent }) {
       <span className="ml-auto shrink-0 text-small text-ink-2">
         {e.actor_name ?? S.review.aiActor}
         {" · "}
-        <span className="u-num">{e.created_at.slice(0, 10)}</span>
+        <span className="u-num">{localDate(e.created_at)}</span>
       </span>
     </div>
   );
diff --git a/web/src/pages/RulesPanel.tsx b/web/src/pages/RulesPanel.tsx
index ff3077b97..12fc5b267 100644
--- a/web/src/pages/RulesPanel.tsx
+++ b/web/src/pages/RulesPanel.tsx
@@ -37,6 +37,7 @@ import {
   Th,
   THead,
   Tr,
+  localDate,
 } from "../ui";
 import { toast } from "../toast";
 import { expressionText, metadataOnly, metadataPatch } from "./ruleExpressions";
@@ -307,7 +308,7 @@ function History({ kbId, ruleId, attributes }: { kbId: string; ruleId: string; a
               <span className="u-num text-small text-ink">{S.ontology.ruleVersion(v.seq)}</span>
               {!v.superseded_at && <Chip tone="success">{S.ontology.ruleVersionCurrent}</Chip>}
               <span className="u-num text-fine text-ink-2">
-                {S.ontology.ruleVersionSince(v.recorded_at.slice(0, 10), v.superseded_at ? v.superseded_at.slice(0, 10) : null)}
+                {S.ontology.ruleVersionSince(localDate(v.recorded_at), v.superseded_at ? localDate(v.superseded_at) : null)}
               </span>
               <span className="u-num text-fine text-ink-2">{S.ontology.ruleVersionStanding(v.derived_count)}</span>
             </div>
diff --git a/web/src/pages/Tokens.tsx b/web/src/pages/Tokens.tsx
index c1224628c..72eec8528 100644
--- a/web/src/pages/Tokens.tsx
+++ b/web/src/pages/Tokens.tsx
@@ -27,11 +27,12 @@ import {
   Th,
   THead,
   Tr,
-  buttonLike,} from "../ui";
+  buttonLike,
+  localDate,
+} from "../ui";
 import { toast } from "../toast";
 import { copyAndSay } from "../clipboard";
 
-const ymd = (iso: string) => iso.slice(0, 10);
 const EXPIRY_CHOICES = [30, 90, 365, 0] as const;
 
 /** Claude Code / Claude Desktop 一族的 Streamable HTTP 写法。每个库一个端点（0014：
@@ -164,15 +165,15 @@ function TokenRow({
         {t.kb_ids?.length ? S.account.nBases(t.kb_ids.length) : S.account.allBases}
       </Td>
       <Td className="u-num text-small text-ink-2">
-        {t.last_used_at ? ymd(t.last_used_at) : S.account.neverUsed}
+        {t.last_used_at ? localDate(t.last_used_at) : S.account.neverUsed}
       </Td>
       <Td className="u-num text-small text-ink-2">
-        {t.expires_at ? ymd(t.expires_at) : S.account.noExpiry}
+        {t.expires_at ? localDate(t.expires_at) : S.account.noExpiry}
       </Td>
-      <Td className="u-num text-small text-ink-2">{ymd(t.created_at)}</Td>
+      <Td className="u-num text-small text-ink-2">{localDate(t.created_at)}</Td>
       <Td className="text-right">
         {revoked ? (
-          <Chip tone="danger">{S.account.revokedOn(ymd(t.revoked_at!))}</Chip>
+          <Chip tone="danger">{S.account.revokedOn(localDate(t.revoked_at!))}</Chip>
         ) : arm ? (
           <Button variant="danger" size="sm"
             disabled={busy}
diff --git a/web/src/pages/accountRecordDates.test.ts b/web/src/pages/accountRecordDates.test.ts
new file mode 100644
index 000000000..aacca2c57
--- /dev/null
+++ b/web/src/pages/accountRecordDates.test.ts
@@ -0,0 +1,73 @@
+import { createElement, type FunctionComponent } from "react";
+import { renderToStaticMarkup } from "react-dom/server";
+import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
+import { beforeAll, describe, expect, it, vi } from "vitest";
+import type { Kb, MyKb, TokenView } from "../api";
+vi.mock("../kb", () => ({
+  useKb: () => ({
+    kbs: [],
+    workspace: { id: "ws", org_id: "org", name: "Team", created_at: "2026-01-01T00:00:00Z" },
+    setKb: () => {},
+  }),
+}));
+vi.mock("@tanstack/react-router", async (original) => ({
+  ...(await original<typeof import("@tanstack/react-router")>()),
+  useNavigate: () => () => {},
+  useSearch: () => ({}),
+}));
+import { MyKbs } from "./MyKbs";
+import { Tokens } from "./Tokens";
+
+// 上海早上八点前，UTC 还是前一天：记录时刻按 UTC 切出日子，看的人就看到前一天
+beforeAll(() => {
+  process.env.TZ = "Asia/Shanghai";
+});
+
+function render(page: FunctionComponent, data: [string[], unknown][]) {
+  const client = new QueryClient({ defaultOptions: { queries: { retry: false } } });
+  for (const [key, value] of data) client.setQueryData(key, value);
+  return renderToStaticMarkup(createElement(QueryClientProvider, { client, children: createElement(page) }));
+}
+
+const days = (html: string) => html.match(/\d{4}-\d{2}-\d{2}/g);
+
+describe("record moments on the account pages", () => {
+  it("dates tokens by the reader's calendar, not by UTC", () => {
+    // 10 月 16 日早上 07:30 发的 30 天令牌，11 月 15 日 07:30 到期，07:45 用过
+    const laptop: TokenView = {
+      id: "t1", name: "laptop", token_prefix: "utp_pat_ab12", scope: "read", kb_ids: null,
+      created_at: "2026-10-15T23:30:00Z", expires_at: "2026-11-14T23:30:00Z",
+      last_used_at: "2026-10-15T23:45:00Z", revoked_at: null,
+    };
+    // 10 月 1 日凌晨 04:00 发的旧令牌，16 日早上 06:10 撤掉
+    const old: TokenView = {
+      ...laptop, id: "t2", name: "old", token_prefix: "utp_pat_cd34",
+      created_at: "2026-09-30T20:00:00Z", expires_at: null, last_used_at: null,
+      revoked_at: "2026-10-15T22:10:00Z",
+    };
+    const html = render(Tokens, [[["tokens"], { tokens: [laptop, old] }]]);
+    // 一行一行：用过、到期、发放；撤掉的那把只有发放和撤销
+    expect(days(html)).toEqual(["2026-10-16", "2026-11-15", "2026-10-16", "2026-10-01", "2026-10-16"]);
+  });
+
+  it("dates a membership by the reader's calendar, not by UTC", () => {
+    const kb: Kb = {
+      id: "kb1", workspace_id: "ws", name: "Research", kind: "knowledge", description: null,
+      visibility: "restricted", is_default: false, auto_extend_ontology: true,
+      materialize_inferences: false, auto_type_resolution: false, governance: false,
+      governance_since: null, inference_interval_minutes: 60, last_inference_at: null,
+      ontology_lang: "en",
+    };
+    // Alice 在上海早上 07:30 把我加进来；另一个库是我自己在零点整加入的
+    const research: MyKb = {
+      kb, my_role: "editor", joined_at: "2026-10-15T23:30:00Z", added_by_name: "Alice",
+      doc_count: 3, member_count: 2,
+    };
+    const notes: MyKb = {
+      ...research, kb: { ...kb, id: "kb2", name: "Notes" },
+      joined_at: "2026-10-15T16:00:00Z", added_by_name: null,
+    };
+    const html = render(MyKbs, [[["myKbs", "ws"], { kbs: [research, notes] }]]);
+    expect(days(html)).toEqual(["2026-10-16", "2026-10-16"]);
+  });
+});