diff --git a/apps/web/lib/workspace-daily-report.test.ts b/apps/web/lib/workspace-daily-report.test.ts
index 1df424b..61caa80 100644
--- a/apps/web/lib/workspace-daily-report.test.ts
+++ b/apps/web/lib/workspace-daily-report.test.ts
@@ -218,6 +218,106 @@ test('getWorkspaceDailyReport groups current user activities by category', () =>
   assert.equal(report.groups.delivery[0].context, 'FTB / 项目管理 / V1.0');
 });
 
+test('getWorkspaceDailyReport counts actual hours from today activity sources', () => {
+  const report = getWorkspaceDailyReport({
+    activities: [
+      {
+        id: 'act-started',
+        actorId: 'Alice',
+        date: '2026-06-26',
+        occurredAt: '2026-06-26T02:00:00.000Z',
+        sourceType: 'dev_task',
+        sourceId: 'task-activity-hours',
+        action: 'dev_task_started',
+        category: 'progress',
+        title: 'Daily report hours',
+        summary: 'Started development: Daily report hours',
+      },
+      {
+        id: 'act-submitted',
+        actorId: 'Alice',
+        date: '2026-06-26',
+        occurredAt: '2026-06-26T04:00:00.000Z',
+        sourceType: 'dev_task',
+        sourceId: 'task-activity-hours',
+        action: 'dev_task_submitted',
+        category: 'delivery',
+        title: 'Daily report hours',
+        summary: 'Submitted development task: Daily report hours',
+      },
+    ],
+    worklogs: [],
+    workItems: [
+      {
+        id: 'task-activity-hours',
+        type: 'devTask',
+        title: 'Daily report hours',
+        status: 'submitted',
+        completed: true,
+        productName: 'FTB',
+        projectName: 'Project Management',
+        versionName: 'V1.0',
+        versionId: 'version-1',
+        extra: {
+          actualStartAt: '2026-06-26T02:00:00.000Z',
+          actualEndAt: '2026-06-26T04:00:00.000Z',
+        },
+        raw: {
+          id: 'task-activity-hours',
+          actualStartAt: '2026-06-26T02:00:00.000Z',
+          actualEndAt: '2026-06-26T04:00:00.000Z',
+          status: 'submitted',
+          updatedAt: '2026-06-26T04:00:00.000Z',
+        } as any,
+      },
+    ],
+    userId: 'Alice',
+    date: '2026-06-26',
+  });
+
+  assert.equal(report.totalHours, 2);
+  assert.equal(report.totalCount, 2);
+});
+
+test('getWorkspaceDailyReport rebuilds activity evidence from persisted work item timestamps', () => {
+  const report = getWorkspaceDailyReport({
+    activities: [],
+    worklogs: [],
+    workItems: [
+      {
+        id: 'task-refresh-recovery',
+        type: 'devTask',
+        title: 'Refresh recovery',
+        status: 'submitted',
+        completed: true,
+        productName: 'FTB',
+        projectName: 'Project Management',
+        versionName: 'V1.0',
+        versionId: 'version-1',
+        extra: {
+          actualStartAt: '2026-06-26T02:00:00.000Z',
+          actualEndAt: '2026-06-26T04:00:00.000Z',
+        },
+        raw: {
+          id: 'task-refresh-recovery',
+          title: 'Refresh recovery',
+          actualStartAt: '2026-06-26T02:00:00.000Z',
+          actualEndAt: '2026-06-26T04:00:00.000Z',
+          status: 'submitted',
+          updatedAt: '2026-06-26T04:00:00.000Z',
+        } as any,
+      },
+    ],
+    userId: 'Alice',
+    date: '2026-06-26',
+  });
+
+  assert.deepEqual(report.groups.progress.map((item) => item.action), ['dev_task_started']);
+  assert.deepEqual(report.groups.delivery.map((item) => item.action), ['dev_task_submitted']);
+  assert.equal(report.totalHours, 2);
+  assert.equal(report.totalCount, 2);
+});
+
 test('getWorkspaceDailyReport flags multi-day in-progress items without today progress', () => {
   const report = getWorkspaceDailyReport({
     activities,
diff --git a/apps/web/lib/workspace-daily-report.ts b/apps/web/lib/workspace-daily-report.ts
index 9254114..60861bd 100644
--- a/apps/web/lib/workspace-daily-report.ts
+++ b/apps/web/lib/workspace-daily-report.ts
@@ -1,6 +1,7 @@
 import type { TaskWorklog } from './task-worklog';
 import type { WorkActivity, WorkActivityCategory } from './work-activity';
 import type { WorkItem } from './workspace-engine';
+import { calcActualElapsedHours } from './work-hours';
 
 export interface WorkspaceDailyReportItem {
   id: string;
@@ -52,6 +53,7 @@ interface GetWorkspaceDailyReportInput {
   workItems: WorkItem[];
   userId: string;
   date: string;
+  now?: Date;
 }
 
 export function getWorkspaceDailyReport({
@@ -60,6 +62,7 @@ export function getWorkspaceDailyReport({
   workItems,
   userId,
   date,
+  now = new Date(),
 }: GetWorkspaceDailyReportInput): WorkspaceDailyReport {
   const workItemMap = new Map(workItems.map((item) => [item.id, item]));
 
@@ -85,9 +88,18 @@ export function getWorkspaceDailyReport({
   const dailyActivities = activities
     .filter((activity) => activity.actorId === userId && activity.date === date)
     .sort((a, b) => b.occurredAt.localeCompare(a.occurredAt));
+  const activityKeys = new Set(dailyActivities.map(getActivityKey));
+  const evidenceSourceIds = new Set([
+    ...dailyActivities.map((activity) => activity.sourceId),
+    ...items.map((item) => item.taskId),
+  ]);
+  const reportActivities = [
+    ...dailyActivities,
+    ...buildTimestampFallbackActivities(workItems, userId, date, activityKeys, evidenceSourceIds),
+  ].sort((a, b) => b.occurredAt.localeCompare(a.occurredAt));
 
   const groups = makeEmptyGroups();
-  for (const activity of dailyActivities) {
+  for (const activity of reportActivities) {
     const item = workItemMap.get(activity.sourceId);
     groups[activity.category].push({
       id: activity.id,
@@ -104,9 +116,16 @@ export function getWorkspaceDailyReport({
   }
 
   const touchedSourceIds = new Set([
-    ...dailyActivities.map((activity) => activity.sourceId),
+    ...reportActivities.map((activity) => activity.sourceId),
     ...items.map((item) => item.taskId),
   ]);
+  const worklogTaskIds = new Set(items.map((item) => item.taskId));
+  const activityHours = Array.from(new Set(reportActivities.map((activity) => activity.sourceId)))
+    .filter((sourceId) => !worklogTaskIds.has(sourceId))
+    .reduce((sum, sourceId) => {
+      const item = workItemMap.get(sourceId);
+      return sum + calcWorkItemHoursForDate(item, date, now);
+    }, 0);
 
   const needsProgressItems = workItems
     .filter((item) => shouldRequireProgress(item, date, touchedSourceIds))
@@ -120,8 +139,8 @@ export function getWorkspaceDailyReport({
 
   return {
     date,
-    totalHours: items.reduce((sum, item) => sum + item.hours, 0),
-    totalCount: items.length + dailyActivities.length,
+    totalHours: roundHalfHour(items.reduce((sum, item) => sum + item.hours, 0) + activityHours),
+    totalCount: items.length + reportActivities.length,
     items,
     groups,
     needsProgressItems,
@@ -143,6 +162,14 @@ function getContext(item?: WorkItem): string | undefined {
   return [item.productName, item.projectName, item.versionName].filter(Boolean).join(' / ');
 }
 
+function getActivityKey(activity: Pick<WorkActivity, 'sourceId' | 'action'>): string {
+  return `${activity.sourceId}:${activity.action}`;
+}
+
+function getRaw(item: WorkItem): Record<string, unknown> {
+  return ((item.raw ?? {}) as unknown) as Record<string, unknown>;
+}
+
 function shouldRequireProgress(item: WorkItem, date: string, touchedSourceIds: Set<string>): boolean {
   if (item.completed) return false;
   if (touchedSourceIds.has(item.id)) return false;
@@ -164,3 +191,205 @@ function getStartedAt(item: WorkItem): string | undefined {
   if (typeof extra.startTime === 'string') return extra.startTime;
   return undefined;
 }
+
+function buildTimestampFallbackActivities(
+  workItems: WorkItem[],
+  userId: string,
+  date: string,
+  existingKeys: Set<string>,
+  evidenceSourceIds: Set<string>,
+): WorkActivity[] {
+  const out: WorkActivity[] = [];
+
+  for (const item of workItems) {
+    if (evidenceSourceIds.has(item.id)) continue;
+    for (const draft of getTimestampFallbackDrafts(item)) {
+      if (!isWithinLocalDate(draft.occurredAt, date)) continue;
+      const activity: WorkActivity = {
+        id: `fallback-${draft.action}-${item.id}`,
+        actorId: userId,
+        date,
+        sourceType: draft.sourceType,
+        sourceId: item.id,
+        action: draft.action,
+        category: draft.category,
+        title: item.title,
+        summary: draft.summary,
+        occurredAt: draft.occurredAt,
+      };
+      const key = getActivityKey(activity);
+      if (existingKeys.has(key)) continue;
+      existingKeys.add(key);
+      out.push(activity);
+    }
+  }
+
+  return out;
+}
+
+function getTimestampFallbackDrafts(item: WorkItem): Array<Pick<WorkActivity, 'sourceType' | 'action' | 'category' | 'summary' | 'occurredAt'>> {
+  const raw = getRaw(item);
+  const extra = item.extra ?? {};
+
+  if (item.type === 'plan_research' || item.type === 'plan_product' || item.type === 'plan_ui') {
+    return [
+      makeFallbackDraft('version_plan', 'version_plan_created', 'creation', asString(raw.createdAt), `新建计划：${item.title}`),
+      makeFallbackDraft('version_plan', 'version_plan_started', 'progress', asString(raw.actualStartAt) ?? asString(extra.actualStartAt), `开始计划：${item.title}`),
+      makeFallbackDraft('version_plan', 'version_plan_completed', 'delivery', asString(raw.completedAt), `完成计划：${item.title}`),
+    ].filter(isFallbackDraft);
+  }
+
+  if (item.type === 'devTask') {
+    return [
+      makeFallbackDraft('dev_task', 'dev_task_created', 'creation', asString(raw.createdAt), `新建开发任务：${item.title}`),
+      makeFallbackDraft('dev_task', 'dev_task_started', 'progress', asString(raw.actualStartAt) ?? asString(extra.actualStartAt), `开始开发：${item.title}`),
+      makeFallbackDraft('dev_task', 'dev_task_submitted', 'delivery', asString(raw.actualEndAt) ?? asString(extra.actualEndAt), `已提测开发任务：${item.title}`),
+    ].filter(isFallbackDraft);
+  }
+
+  if (item.type === 'testCase') {
+    const completedAt = asString(raw.completedAt) ?? asString(extra.completedAt);
+    const terminal = getTestCaseTerminalFallback(item.status, item.title, completedAt);
+    return [
+      makeFallbackDraft('test_case', 'test_case_created', 'creation', asString(raw.createdAt), `新建测试用例：${item.title}`),
+      makeFallbackDraft('test_case', 'test_case_started', 'progress', asString(raw.startedAt) ?? asString(extra.startedAt), `开始测试：${item.title}`),
+      terminal,
+    ].filter(isFallbackDraft);
+  }
+
+  if (item.type === 'bug') {
+    return [
+      makeFallbackDraft('bug', 'bug_created', 'creation', asString(raw.createdAt), `新建 Bug：${item.title}`),
+      makeFallbackDraft('bug', 'bug_fixing', 'progress', getBugFixingStartedAt(raw), `开始修复 Bug：${item.title}`),
+      makeFallbackDraft('bug', 'bug_fixed', 'delivery', asString(raw.resolvedAt), `已修复 Bug：${item.title}`),
+      makeFallbackDraft('bug', 'bug_closed', 'delivery', asString(raw.closedAt), `已关闭 Bug：${item.title}`),
+    ].filter(isFallbackDraft);
+  }
+
+  return [];
+}
+
+function makeFallbackDraft(
+  sourceType: WorkActivity['sourceType'],
+  action: WorkActivity['action'],
+  category: WorkActivityCategory,
+  occurredAt: string | undefined,
+  summary: string,
+): Pick<WorkActivity, 'sourceType' | 'action' | 'category' | 'summary' | 'occurredAt'> | undefined {
+  if (!occurredAt) return undefined;
+  return { sourceType, action, category, summary, occurredAt };
+}
+
+function isFallbackDraft(
+  draft: Pick<WorkActivity, 'sourceType' | 'action' | 'category' | 'summary' | 'occurredAt'> | undefined,
+): draft is Pick<WorkActivity, 'sourceType' | 'action' | 'category' | 'summary' | 'occurredAt'> {
+  return Boolean(draft);
+}
+
+function getTestCaseTerminalFallback(
+  status: string,
+  title: string,
+  completedAt: string | undefined,
+): Pick<WorkActivity, 'sourceType' | 'action' | 'category' | 'summary' | 'occurredAt'> | undefined {
+  if (status === 'passed') return makeFallbackDraft('test_case', 'test_case_passed', 'delivery', completedAt, `测试通过：${title}`);
+  if (status === 'failed') return makeFallbackDraft('test_case', 'test_case_failed', 'risk', completedAt, `测试不通过：${title}`);
+  if (status === 'blocked') return makeFallbackDraft('test_case', 'test_case_blocked', 'risk', completedAt, `测试阻塞：${title}`);
+  return undefined;
+}
+
+function calcWorkItemHoursForDate(item: WorkItem | undefined, date: string, now: Date): number {
+  const interval = getActualInterval(item, now);
+  if (!interval) return 0;
+
+  const day = getLocalDateBounds(date);
+  if (!day) return 0;
+
+  const start = new Date(interval.start).getTime();
+  const end = new Date(interval.end).getTime();
+  if (!Number.isFinite(start) || !Number.isFinite(end) || end <= start) return 0;
+
+  const overlapStart = Math.max(start, day.start.getTime());
+  const overlapEnd = Math.min(end, day.end.getTime());
+  if (overlapEnd <= overlapStart) return 0;
+
+  return calcActualElapsedHours(
+    new Date(overlapStart).toISOString(),
+    new Date(overlapEnd).toISOString(),
+  );
+}
+
+function getActualInterval(item: WorkItem | undefined, now: Date): { start: string; end: string } | undefined {
+  if (!item) return undefined;
+  const raw = getRaw(item);
+  const extra = item.extra ?? {};
+  const nowIso = now.toISOString();
+
+  if (item.type === 'plan_research' || item.type === 'plan_product' || item.type === 'plan_ui') {
+    const start = asString(raw.actualStartAt) ?? asString(extra.actualStartAt);
+    const end = asString(raw.completedAt) ?? nowIso;
+    return start ? { start, end } : undefined;
+  }
+
+  if (item.type === 'devTask') {
+    const start = asString(raw.actualStartAt) ?? asString(extra.actualStartAt);
+    const end = asString(raw.actualEndAt) ?? asString(extra.actualEndAt) ?? (item.status === 'submitted' ? asString(raw.updatedAt) : undefined) ?? nowIso;
+    return start ? { start, end } : undefined;
+  }
+
+  if (item.type === 'testCase') {
+    const start = asString(raw.startedAt) ?? asString(extra.startedAt);
+    const isTerminal = ['passed', 'failed', 'blocked'].includes(item.status);
+    const end = asString(raw.completedAt) ?? asString(extra.completedAt) ?? (isTerminal ? asString(raw.updatedAt) : undefined) ?? nowIso;
+    return start ? { start, end } : undefined;
+  }
+
+  if (item.type === 'bug') {
+    const start = getBugFixingStartedAt(raw) ?? asString(raw.createdAt) ?? asString(extra.createdAt);
+    const isTerminal = ['closed', 'rejected'].includes(item.status);
+    const end = asString(raw.closedAt) ?? asString(raw.resolvedAt) ?? (isTerminal ? asString(raw.updatedAt) : undefined) ?? nowIso;
+    return start ? { start, end } : undefined;
+  }
+
+  return undefined;
+}
+
+function getBugFixingStartedAt(raw: Record<string, unknown>): string | undefined {
+  const logs = raw.logs;
+  if (!Array.isArray(logs)) return undefined;
+  const fixingLog = logs.find((log) => {
+    if (!log || typeof log !== 'object') return false;
+    const row = log as Record<string, unknown>;
+    return row.action === 'status_change' && row.toValue === 'fixing' && typeof row.createdAt === 'string';
+  }) as Record<string, unknown> | undefined;
+  return asString(fixingLog?.createdAt);
+}
+
+function getLocalDateBounds(date: string): { start: Date; end: Date } | undefined {
+  const match = /^(\d{4})-(\d{2})-(\d{2})$/.exec(date);
+  if (!match) return undefined;
+  const year = Number(match[1]);
+  const month = Number(match[2]);
+  const day = Number(match[3]);
+  if (!Number.isInteger(year) || !Number.isInteger(month) || !Number.isInteger(day)) return undefined;
+  const start = new Date(year, month - 1, day, 0, 0, 0, 0);
+  const end = new Date(year, month - 1, day + 1, 0, 0, 0, 0);
+  if (!Number.isFinite(start.getTime()) || !Number.isFinite(end.getTime())) return undefined;
+  return { start, end };
+}
+
+function isWithinLocalDate(value: string, date: string): boolean {
+  const bounds = getLocalDateBounds(date);
+  if (!bounds) return false;
+  const time = new Date(value).getTime();
+  if (!Number.isFinite(time)) return false;
+  return time >= bounds.start.getTime() && time < bounds.end.getTime();
+}
+
+function asString(value: unknown): string | undefined {
+  return typeof value === 'string' && value.length > 0 ? value : undefined;
+}
+
+function roundHalfHour(hours: number): number {
+  if (!Number.isFinite(hours) || hours <= 0) return 0;
+  return Math.round(hours * 2) / 2;
+}