diff --git a/app/person/dashboard/components/PersonalProjectTable.tsx b/app/person/dashboard/components/PersonalProjectTable.tsx
index e821296..37c95cb 100644
--- a/app/person/dashboard/components/PersonalProjectTable.tsx
+++ b/app/person/dashboard/components/PersonalProjectTable.tsx
@@ -2,6 +2,7 @@
 
 import { getPersonProjectDashBoard } from "@/components/label/api/project"
 import { Project } from "@/components/label/api/project/typing"
+import { formatWorkTimeHoursMinutes } from "@/components/label/utils/time"
 import {
   SettingDataTable,
   SettingListHeader,
@@ -18,24 +19,10 @@ import { DatePickerInput, type DatesRangeValue } from "@mantine/dates"
 import { IconRefresh, IconSearch } from "@tabler/icons-react"
 import dayjs from "dayjs"
 import "dayjs/locale/zh-cn"
-import duration from "dayjs/plugin/duration"
 import { DataTableColumn } from "mantine-datatable"
 import { useCallback, useEffect, useMemo, useState } from "react"
 import classes from "../page.module.css"
 
-dayjs.extend(duration)
-
-function formatDurationSeconds(seconds?: number | null) {
-  const value = seconds ?? 0
-  if (!value) return "-"
-  const durationObj = dayjs.duration(value, "seconds")
-  const hours = durationObj.hours()
-  const minutes = durationObj.minutes()
-  if (hours) return `${hours}小时${minutes}分钟`
-  if (minutes) return `${minutes}分钟`
-  return "-"
-}
-
 interface FilterFormRecord {
   query_date: DatesRangeValue
 }
@@ -201,7 +188,7 @@ export default function PersonalProjectTable() {
           render: (record: Project.PersonProjectDashboardResponseItem) => {
             return (
               <Text className={classes.tableCellText}>
-                {formatDurationSeconds(record.work_time)}
+                {formatWorkTimeHoursMinutes(record.work_time)}
               </Text>
             )
           },
diff --git a/app/person/dashboard/page.tsx b/app/person/dashboard/page.tsx
index 1c969c9..ce338ef 100644
--- a/app/person/dashboard/page.tsx
+++ b/app/person/dashboard/page.tsx
@@ -1,6 +1,7 @@
 "use client"
 
 import { getCurrentPersonData } from "@/components/label/api/project"
+import { formatWorkTimeHoursMinutes } from "@/components/label/utils/time"
 import {
   SettingContentPanel,
   SettingPage,
@@ -8,14 +9,11 @@ import {
 } from "@/components/setting/PageSurface"
 import { Stack, Text } from "@mantine/core"
 import dayjs from "dayjs"
-import duration from "dayjs/plugin/duration"
 import { useEffect, useMemo, useState } from "react"
 import PersonalProjectTable from "./components/PersonalProjectTable"
 import PersonalTaskTable from "./components/PersonalTaskTable"
 import classes from "./page.module.css"
 
-dayjs.extend(duration)
-
 function monthText(month: string) {
   const list = [
     "一月",
@@ -35,17 +33,6 @@ function monthText(month: string) {
   return list[idx] ?? ""
 }
 
-function formatDurationSeconds(seconds?: number | null) {
-  const value = seconds ?? 0
-  if (!value) return "-"
-  const durationObj = dayjs.duration(value, "seconds")
-  const hours = durationObj.hours()
-  const minutes = durationObj.minutes()
-  if (hours) return `${hours}小时${minutes}分钟`
-  if (minutes) return `${minutes}分钟`
-  return "-"
-}
-
 export default function PersonDashboardPage() {
   const [data, setData] = useState<{
     label_data_size: number
@@ -68,9 +55,9 @@ export default function PersonDashboardPage() {
 
   const dataText = useMemo(() => {
     return {
-      label: formatDurationSeconds(data?.label_work_time ?? 0),
-      review1: formatDurationSeconds(data?.review1_work_time ?? 0),
-      review2: formatDurationSeconds(data?.review2_work_time ?? 0),
+      label: formatWorkTimeHoursMinutes(data?.label_work_time ?? 0),
+      review1: formatWorkTimeHoursMinutes(data?.review1_work_time ?? 0),
+      review2: formatWorkTimeHoursMinutes(data?.review2_work_time ?? 0),
     }
   }, [data])
 
diff --git a/app/person/report/page.tsx b/app/person/report/page.tsx
index 216be81..2aa95ee 100644
--- a/app/person/report/page.tsx
+++ b/app/person/report/page.tsx
@@ -7,6 +7,7 @@ import {
 import { Daily } from "@/components/label/api/daily/typing"
 import { getSelfProjectList } from "@/components/label/api/project"
 import { useAllUserStore } from "@/components/label/store/auth"
+import { formatWorkTime } from "@/components/label/utils/time"
 import {
   SettingContentPanel,
   SettingCustomPageSizeControl,
@@ -47,7 +48,6 @@ import { VirtualTreeSelect } from "@/components/tree-select/tree"
 import { DateInput } from "@mantine/dates"
 import dayjs from "dayjs"
 import "dayjs/locale/zh-cn"
-import duration from "dayjs/plugin/duration"
 import { DataTableColumn, DataTableSortStatus } from "mantine-datatable"
 import { useCallback, useEffect, useMemo, useState } from "react"
 import DailyReportModal from "./components/DailyReportModal"
@@ -62,7 +62,6 @@ import {
   workTypeOpts,
 } from "./config"
 import classes from "./page.module.css"
-dayjs.extend(duration)
 
 function weekDayText(day: number) {
   const list = ["周日", "周一", "周二", "周三", "周四", "周五", "周六"]
@@ -241,10 +240,6 @@ export default function PersonReportPage() {
       return accumulator + (Number.isFinite(value) ? value : 0)
     }, 0)
 
-  const getTime = (time: number) => {
-    return dayjs.duration(time, "seconds").format("HH:mm:ss")
-  }
-
   const columns = useMemo(() => {
     const cols: DataTableColumn<Daily.DailyWorkList>[] = [
       {
@@ -335,8 +330,9 @@ export default function PersonReportPage() {
         title: "工时",
         width: 90,
         sortable: true,
-        render: (record) => (record.work_time ? getTime(record.work_time) : 0),
-        footer: getTime(sum(records.map((r) => r.work_time ?? 0))),
+        render: (record) =>
+          record.work_time ? formatWorkTime(record.work_time) : 0,
+        footer: formatWorkTime(sum(records.map((r) => r.work_time ?? 0))),
       },
       { accessor: "rate", title: "额定倍率", width: 90 },
       {
diff --git a/app/person/workload/WorkloadMetricsTable.tsx b/app/person/workload/WorkloadMetricsTable.tsx
index 1fa32e3..dc47d9a 100644
--- a/app/person/workload/WorkloadMetricsTable.tsx
+++ b/app/person/workload/WorkloadMetricsTable.tsx
@@ -1,6 +1,7 @@
 "use client"
 
 import { TimeFilter } from "@/components/label/api/workload/typing"
+import { formatWorkTime } from "@/components/label/utils/time"
 import {
   SettingContentPanel,
   SettingDataTable,
@@ -23,12 +24,10 @@ import {
 } from "@tabler/icons-react"
 import dayjs from "dayjs"
 import "dayjs/locale/zh-cn"
-import duration from "dayjs/plugin/duration"
 import { DataTableColumn, DataTableSortStatus } from "mantine-datatable"
 import { useEffect, useMemo, useState } from "react"
 import * as XLSX from "xlsx-js-style"
 import { DimensionType, GroupedData, MetricColumn } from "./config"
-dayjs.extend(duration)
 
 function emptyGroupedData(): GroupedData {
   return {
@@ -157,10 +156,6 @@ export default function WorkloadMetricsTable(props: {
     return records
   }, [appliedFilters, data])
 
-  const getTime = (time: number) => {
-    return dayjs.duration(time, "seconds").format("HH:mm:ss")
-  }
-
   const baseColumns = useMemo(() => {
     const allCols: Record<DimensionType, DataTableColumn<any>[]> = {
       all: [
@@ -253,12 +248,12 @@ export default function WorkloadMetricsTable(props: {
           return acc + (Number.isFinite(value) ? value : 0)
         }, 0)
         if (["work_time"].includes(metric.key)) {
-          return [metric.key, getTime(sum ?? 0)]
+          return [metric.key, formatWorkTime(sum)]
         } else {
           return [metric.key, sum]
         }
       })
-    ) as Record<string, number>
+    ) as Record<string, string | number>
 
     const metricCols = metrics.map((metric) => {
       if (["work_time"].includes(metric.key)) {
@@ -268,7 +263,7 @@ export default function WorkloadMetricsTable(props: {
           width: 140,
           sortable: true,
           footer: totalsByKey[metric.key] ?? 0,
-          render: (record) => getTime(record[metric.key] ?? 0),
+          render: (record) => formatWorkTime(record[metric.key]),
         } as DataTableColumn<any>
       } else {
         return {
diff --git a/components/label/utils/time.ts b/components/label/utils/time.ts
new file mode 100644
index 0000000..7e6ae14
--- /dev/null
+++ b/components/label/utils/time.ts
@@ -0,0 +1,41 @@
+function normalizeDurationSeconds(value: unknown) {
+  const totalSeconds = Number(value ?? 0)
+  if (!Number.isFinite(totalSeconds) || totalSeconds <= 0) {
+    return 0
+  }
+
+  return Math.floor(totalSeconds)
+}
+
+export function formatWorkTime(value: unknown) {
+  const normalizedSeconds = normalizeDurationSeconds(value)
+  if (!normalizedSeconds) {
+    return "00:00:00"
+  }
+
+  const hours = Math.floor(normalizedSeconds / 3600)
+  const minutes = Math.floor((normalizedSeconds % 3600) / 60)
+  const seconds = normalizedSeconds % 60
+
+  return [hours, minutes, seconds]
+    .map((part) => String(part).padStart(2, "0"))
+    .join(":")
+}
+
+export function formatWorkTimeHoursMinutes(value: unknown) {
+  const normalizedSeconds = normalizeDurationSeconds(value)
+  if (!normalizedSeconds) {
+    return "-"
+  }
+
+  const hours = Math.floor(normalizedSeconds / 3600)
+  const minutes = Math.floor((normalizedSeconds % 3600) / 60)
+
+  if (hours > 0) {
+    return `${hours}小时${minutes}分钟`
+  }
+  if (minutes > 0) {
+    return `${minutes}分钟`
+  }
+  return "-"
+}