diff --git a/app/Service/LocalizationService.php b/app/Service/LocalizationService.php
index b2269812..a03d1b7d 100644
--- a/app/Service/LocalizationService.php
+++ b/app/Service/LocalizationService.php
@@ -96,6 +96,30 @@ class LocalizationService
         }
     }
 
+    /**
+     * Format a duration for reporting contexts (PDF reports, places that display duration
+     * directly next to cost). Promotes the verbose `Hh Mm` format to the compact `HH:MM:SS`
+     * so totals stay narrow and reconcile with cost, which is always computed to the second.
+     */
+    public function formatIntervalForReporting(CarbonInterval $interval): string
+    {
+        $promoted = [
+            IntervalFormat::HoursMinutes,
+            IntervalFormat::HoursMinutesColonSeparated,
+        ];
+        if (! in_array($this->intervalFormat, $promoted, true)) {
+            return $this->formatInterval($interval);
+        }
+
+        $previous = $this->intervalFormat;
+        $this->intervalFormat = IntervalFormat::HoursMinutesSecondsColonSeparated;
+        try {
+            return $this->formatInterval($interval);
+        } finally {
+            $this->intervalFormat = $previous;
+        }
+    }
+
     public function formatCurrency(Money $money): string
     {
         $currencyService = app(CurrencyService::class);
diff --git a/resources/js/Components/Common/Reporting/ReportingChart.vue b/resources/js/Components/Common/Reporting/ReportingChart.vue
index 8db1567d..e1ff6d66 100644
--- a/resources/js/Components/Common/Reporting/ReportingChart.vue
+++ b/resources/js/Components/Common/Reporting/ReportingChart.vue
@@ -2,7 +2,7 @@
 import VChart, { THEME_KEY } from 'vue-echarts';
 import { computed, provide, inject, shallowRef, type ComputedRef } from 'vue';
 import LinearGradient from 'zrender/lib/graphic/LinearGradient';
-import { formatDate, formatHumanReadableDuration, formatWeek } from '@/packages/ui/src/utils/time';
+import { formatDate, formatReportingDuration, formatWeek } from '@/packages/ui/src/utils/time';
 import { use } from 'echarts/core';
 import { CanvasRenderer } from 'echarts/renderers';
 import { BarChart } from 'echarts/charts';
@@ -137,7 +137,7 @@ const option = computed(() => ({
             type: 'bar',
             tooltip: {
                 valueFormatter: (value: number) => {
-                    return formatHumanReadableDuration(
+                    return formatReportingDuration(
                         value,
                         organization?.value?.interval_format,
                         organization?.value?.number_format
diff --git a/resources/js/Components/Common/Reporting/ReportingOverview.vue b/resources/js/Components/Common/Reporting/ReportingOverview.vue
index a561621b..3ec124bf 100644
--- a/resources/js/Components/Common/Reporting/ReportingOverview.vue
+++ b/resources/js/Components/Common/Reporting/ReportingOverview.vue
@@ -8,7 +8,7 @@ import {
 import { SaveIcon } from 'lucide-vue-next';
 import { getOrganizationCurrencyString } from '@/utils/money';
 import {
-    formatHumanReadableDuration,
+    formatReportingDuration,
     getDayJsInstance,
     getLocalizedDayJs,
 } from '@/packages/ui/src/utils/time';
@@ -426,7 +426,7 @@ const tableData = computed(() => {
                                 class="justify-end flex items-center font-medium"
                                 :class="!showBillableRate ? 'pr-6' : ''">
                                 {{
-                                    formatHumanReadableDuration(
+                                    formatReportingDuration(
                                         aggregatedTableTimeEntries.seconds,
                                         organization?.interval_format,
                                         organization?.number_format
diff --git a/resources/js/Components/Common/Reporting/ReportingPieChart.vue b/resources/js/Components/Common/Reporting/ReportingPieChart.vue
index 8cb78028..7e09238f 100644
--- a/resources/js/Components/Common/Reporting/ReportingPieChart.vue
+++ b/resources/js/Components/Common/Reporting/ReportingPieChart.vue
@@ -10,7 +10,7 @@ import {
     TitleComponent,
     TooltipComponent,
 } from 'echarts/components';
-import { formatHumanReadableDuration } from '@/packages/ui/src/utils/time';
+import { formatReportingDuration } from '@/packages/ui/src/utils/time';
 import { useCssVariable } from '@/packages/ui/src';
 import type { Organization } from '@/packages/api/src';
 
@@ -67,7 +67,7 @@ const option = computed(() => ({
             },
             tooltip: {
                 valueFormatter: (value: number) => {
-                    return formatHumanReadableDuration(
+                    return formatReportingDuration(
                         value,
                         organization?.value?.interval_format,
                         organization?.value?.number_format
diff --git a/resources/js/Components/Common/Reporting/ReportingRow.vue b/resources/js/Components/Common/Reporting/ReportingRow.vue
index 26b24b1c..cb339fe0 100644
--- a/resources/js/Components/Common/Reporting/ReportingRow.vue
+++ b/resources/js/Components/Common/Reporting/ReportingRow.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { formatHumanReadableDuration } from '@/packages/ui/src/utils/time';
+import { formatReportingDuration } from '@/packages/ui/src/utils/time';
 import { formatCents } from '@/packages/ui/src/utils/money';
 import GroupedItemsCountButton from '@/packages/ui/src/GroupedItemsCountButton.vue';
 import { ref, inject, type ComputedRef } from 'vue';
@@ -44,7 +44,7 @@ const organization = inject<ComputedRef<Organization>>('organization');
         </div>
         <div class="justify-end flex items-center" :class="!showCost ? 'pr-6' : ''">
             {{
-                formatHumanReadableDuration(
+                formatReportingDuration(
                     entry.seconds,
                     organization?.interval_format,
                     organization?.number_format
diff --git a/resources/js/Components/Dashboard/ThisWeekOverview.vue b/resources/js/Components/Dashboard/ThisWeekOverview.vue
index 9cf9f615..a06e2f5c 100644
--- a/resources/js/Components/Dashboard/ThisWeekOverview.vue
+++ b/resources/js/Components/Dashboard/ThisWeekOverview.vue
@@ -16,7 +16,7 @@ import CardTitle from '@/packages/ui/src/CardTitle.vue';
 import LinearGradient from 'zrender/lib/graphic/LinearGradient';
 import ProjectsChartCard from '@/Components/Dashboard/ProjectsChartCard.vue';
 import ThisWeekReportingTable from '@/Components/Dashboard/ThisWeekReportingTable.vue';
-import { formatHumanReadableDuration } from '@/packages/ui/src/utils/time';
+import { formatReportingDuration } from '@/packages/ui/src/utils/time';
 import { formatCents } from '@/packages/ui/src/utils/money';
 import { getWeekStart } from '@/packages/ui/src/utils/settings';
 import { useCssVariable } from '@/packages/ui/src';
@@ -223,7 +223,7 @@ const option = computed(() => {
                 type: 'bar',
                 tooltip: {
                     valueFormatter: (value: number) => {
-                        return formatHumanReadableDuration(
+                        return formatReportingDuration(
                             value,
                             organization?.value?.interval_format,
                             organization?.value?.number_format
@@ -252,7 +252,7 @@ const option = computed(() => {
                 title="Spent Time"
                 :value="
                     totalWeeklyTime
-                        ? formatHumanReadableDuration(
+                        ? formatReportingDuration(
                               totalWeeklyTime,
                               organization?.interval_format,
                               organization?.number_format
@@ -263,7 +263,7 @@ const option = computed(() => {
                 title="Billable Time"
                 :value="
                     totalWeeklyBillableTime
-                        ? formatHumanReadableDuration(
+                        ? formatReportingDuration(
                               totalWeeklyBillableTime,
                               organization?.interval_format,
                               organization?.number_format
diff --git a/resources/js/Components/Dashboard/ThisWeekReportingTable.vue b/resources/js/Components/Dashboard/ThisWeekReportingTable.vue
index b1f3a368..ab37c507 100644
--- a/resources/js/Components/Dashboard/ThisWeekReportingTable.vue
+++ b/resources/js/Components/Dashboard/ThisWeekReportingTable.vue
@@ -2,7 +2,7 @@
 import ReportingRow from '@/Components/Common/Reporting/ReportingRow.vue';
 import ReportingGroupBySelect from '@/Components/Common/Reporting/ReportingGroupBySelect.vue';
 import {
-    formatHumanReadableDuration,
+    formatReportingDuration,
     getDayJsInstance,
     getLocalizedDayJs,
 } from '@/packages/ui/src/utils/time';
@@ -174,7 +174,7 @@ const showBillableRate = computed(() => {
                         class="justify-end flex items-center font-medium"
                         :class="!showBillableRate ? 'pr-6' : ''">
                         {{
-                            formatHumanReadableDuration(
+                            formatReportingDuration(
                                 aggregatedTableTimeEntries.seconds,
                                 organization?.interval_format,
                                 organization?.number_format
diff --git a/resources/js/Pages/ReportingDetailed.vue b/resources/js/Pages/ReportingDetailed.vue
index 90580375..07ffdc13 100644
--- a/resources/js/Pages/ReportingDetailed.vue
+++ b/resources/js/Pages/ReportingDetailed.vue
@@ -390,6 +390,7 @@ async function downloadExport(format: ExportFormat) {
                     :organization-billable-rate="organization?.billable_rate ?? null"
                     :duplicate-time-entry="() => createTimeEntry(entry)"
                     :members="members"
+                    is-report
                     show-date
                     show-member
                     :time-entry="entry"
diff --git a/resources/js/Pages/SharedReport.vue b/resources/js/Pages/SharedReport.vue
index 44dfa426..3eb0b188 100644
--- a/resources/js/Pages/SharedReport.vue
+++ b/resources/js/Pages/SharedReport.vue
@@ -3,7 +3,7 @@ import MainContainer from '@/packages/ui/src/MainContainer.vue';
 import PageTitle from '@/Components/Common/PageTitle.vue';
 import { ChartBarIcon } from '@heroicons/vue/20/solid';
 import ReportingChart from '@/Components/Common/Reporting/ReportingChart.vue';
-import { formatHumanReadableDuration } from '@/packages/ui/src/utils/time';
+import { formatReportingDuration } from '@/packages/ui/src/utils/time';
 import ReportingRow from '@/Components/Common/Reporting/ReportingRow.vue';
 import ReportingPieChart from '@/Components/Common/Reporting/ReportingPieChart.vue';
 import { formatCents } from '@/packages/ui/src/utils/money';
@@ -231,7 +231,7 @@ onMounted(async () => {
                                 </div>
                                 <div class="justify-end flex items-center font-medium">
                                     {{
-                                        formatHumanReadableDuration(
+                                        formatReportingDuration(
                                             aggregatedTableTimeEntries.seconds,
                                             reportIntervalFormat,
                                             reportNumberFormat
diff --git a/resources/js/Pages/Teams/Partials/OrganizationFormatSettings.vue b/resources/js/Pages/Teams/Partials/OrganizationFormatSettings.vue
index 3f04e7bd..0362460a 100644
--- a/resources/js/Pages/Teams/Partials/OrganizationFormatSettings.vue
+++ b/resources/js/Pages/Teams/Partials/OrganizationFormatSettings.vue
@@ -1,8 +1,8 @@
 <script setup lang="ts">
 import FormSection from '@/Components/FormSection.vue';
 import PrimaryButton from '@/packages/ui/src/Buttons/PrimaryButton.vue';
-import { onMounted, ref } from 'vue';
-import { Field, FieldLabel } from '@/packages/ui/src/field';
+import { computed, onMounted, ref } from 'vue';
+import { Field, FieldDescription, FieldLabel } from '@/packages/ui/src/field';
 import type { UpdateOrganizationBody } from '@/packages/api/src';
 import { useOrganizationStore } from '@/utils/useOrganization';
 import { storeToRefs } from 'pinia';
@@ -52,6 +52,12 @@ onMounted(async () => {
     }
 });
 
+const showsHhMmSsInReports = computed(
+    () =>
+        form.value.interval_format === 'hours-minutes' ||
+        form.value.interval_format === 'hours-minutes-colon-separated'
+);
+
 async function submit() {
     mutation.mutate(form.value);
 }
@@ -149,6 +155,12 @@ async function submit() {
                         >
                     </SelectContent>
                 </Select>
+                <FieldDescription v-if="showsHhMmSsInReports">
+                    Reports and totals shown next to cost use HH:MM:SS for this format, so the
+                    duration reconciles with the billable amount down to the second. Everywhere
+                    else (time tracker, calendar, entry rows) seconds are omitted and durations
+                    stay in your chosen format.
+                </FieldDescription>
             </Field>
         </template>
 
diff --git a/resources/js/packages/ui/src/TimeEntry/TimeEntryRow.vue b/resources/js/packages/ui/src/TimeEntry/TimeEntryRow.vue
index 42cec2ef..5831c37c 100644
--- a/resources/js/packages/ui/src/TimeEntry/TimeEntryRow.vue
+++ b/resources/js/packages/ui/src/TimeEntry/TimeEntryRow.vue
@@ -52,6 +52,7 @@ const props = defineProps<{
     selected?: boolean;
     canCreateProject: boolean;
     enableEstimatedTime: boolean;
+    isReport?: boolean;
 }>();
 
 const emit = defineEmits<{ selected: []; unselected: [] }>();
@@ -172,6 +173,7 @@ async function handleDeleteTimeEntry() {
                             <TimeEntryRowDurationInput
                                 :start="timeEntry.start"
                                 :end="timeEntry.end"
+                                :is-report="props.isReport"
                                 @changed="updateStartEndTime"></TimeEntryRowDurationInput>
                             <TimeTrackerStartStop
                                 :active="!!(timeEntry.start && !timeEntry.end)"
@@ -196,6 +198,7 @@ async function handleDeleteTimeEntry() {
                                 <TimeEntryRowDurationInput
                                     :start="timeEntry.start"
                                     :end="timeEntry.end"
+                                    :is-report="props.isReport"
                                     @changed="updateStartEndTime"></TimeEntryRowDurationInput>
                             </div>
                             <!-- Second row: project/task - tags - billable - start - more -->
diff --git a/resources/js/packages/ui/src/TimeEntry/TimeEntryRowDurationInput.vue b/resources/js/packages/ui/src/TimeEntry/TimeEntryRowDurationInput.vue
index 113befce..91166b99 100644
--- a/resources/js/packages/ui/src/TimeEntry/TimeEntryRowDurationInput.vue
+++ b/resources/js/packages/ui/src/TimeEntry/TimeEntryRowDurationInput.vue
@@ -2,6 +2,7 @@
 import {
     calculateDifference,
     formatHumanReadableDuration,
+    formatReportingDuration,
     parseTimeInput,
 } from '@/packages/ui/src/utils/time';
 import { computed, ref, inject, type ComputedRef } from 'vue';
@@ -18,6 +19,7 @@ const organizationSettings = computed(() => ({
 const props = defineProps<{
     start: string;
     end: string | null;
+    isReport?: boolean;
 }>();
 const emit = defineEmits<{
     changed: [start: string, end: string | null];
@@ -51,7 +53,8 @@ const currentTime = computed({
         if (temporaryCustomTimerEntry.value !== '') {
             return temporaryCustomTimerEntry.value;
         }
-        return formatHumanReadableDuration(
+        const formatter = props.isReport ? formatReportingDuration : formatHumanReadableDuration;
+        return formatter(
             calculateDifference(props.start, props.end),
             organizationSettings.value.intervalFormat,
             organizationSettings.value.numberFormat
diff --git a/resources/js/packages/ui/src/utils/time.ts b/resources/js/packages/ui/src/utils/time.ts
index 6f1c4c96..3c322fec 100644
--- a/resources/js/packages/ui/src/utils/time.ts
+++ b/resources/js/packages/ui/src/utils/time.ts
@@ -118,6 +118,26 @@ export function formatHumanReadableDuration(
     }
 }
 
+/**
+ * Format a duration for reporting views where cost and duration must reconcile.
+ *
+ * When the org's `hours-minutes` format is selected, seconds are normally dropped for
+ * readability (e.g. "14h 45min"). In reports this can make the total duration appear
+ * inconsistent with the billable cost (which is computed to the second). To keep the
+ * two columns reconcilable without inflating column widths with "14h 45min 06s",
+ * promote to the compact `HH:MM:SS` format in reporting contexts.
+ */
+export function formatReportingDuration(
+    duration: number,
+    intervalFormat?: string,
+    numberFormat?: string
+): string {
+    const promoted =
+        intervalFormat === 'hours-minutes' || intervalFormat === 'hours-minutes-colon-separated';
+    const effectiveFormat = promoted ? 'hours-minutes-seconds-colon-separated' : intervalFormat;
+    return formatHumanReadableDuration(duration, effectiveFormat, numberFormat);
+}
+
 export function formatDuration(duration: number): string {
     const dayJsDuration = dayjs.duration(duration, 's');
     const hours = Math.floor(dayJsDuration.asHours());
diff --git a/resources/views/reports/time-entry-aggregate/pdf.blade.php b/resources/views/reports/time-entry-aggregate/pdf.blade.php
index c8f0c1d2..4681cf83 100644
--- a/resources/views/reports/time-entry-aggregate/pdf.blade.php
+++ b/resources/views/reports/time-entry-aggregate/pdf.blade.php
@@ -150,7 +150,7 @@
         <div style="padding: 8px 12px; border-radius: 8px;">
             <div style="color: #71717a; font-weight: 600;">Duration</div>
             <div
-                style="font-size: 24px; font-weight: 500; margin-top: 2px;">{{ $localization->formatInterval(CarbonInterval::seconds($aggregatedData['seconds'])) }} </div>
+                style="font-size: 24px; font-weight: 500; margin-top: 2px;">{{ $localization->formatIntervalForReporting(CarbonInterval::seconds($aggregatedData['seconds'])) }} </div>
         </div>
         @if($showBillableRate)
         <div style="padding: 8px 12px; border-radius: 8px;">
@@ -199,7 +199,7 @@
                             </span>
                         </td>
                         <td style="text-align: left;">
-                            {{ $localization->formatInterval(CarbonInterval::seconds($group1Entry['seconds'])) }}
+                            {{ $localization->formatIntervalForReporting(CarbonInterval::seconds($group1Entry['seconds'])) }}
                         </td>
                         @if($showBillableRate)
                         <td style="text-align: right;">
@@ -214,7 +214,7 @@
                         Total
                     </td>
                     <td style="font-weight: 500;color: #18181b;">
-                        {{ $localization->formatInterval(CarbonInterval::seconds($aggregatedData['seconds'])) }}
+                        {{ $localization->formatIntervalForReporting(CarbonInterval::seconds($aggregatedData['seconds'])) }}
                     </td>
                     @if($showBillableRate)
                     <td style="text-align: right; font-weight: 500;color: #18181b;">
@@ -282,7 +282,7 @@
                             @endif
                         </td>
                         <td>
-                            {{ $localization->formatInterval($duration) }}
+                            {{ $localization->formatIntervalForReporting($duration) }}
                         </td>
                         <td>
                             {{ $localization->formatNumber($duration->totalHours) }}
@@ -403,7 +403,7 @@
                 type: "bar",
                 data: {!! json_encode(collect($dataHistoryChart['grouped_data'])->map(fn($value) => (object) [
                             'value' => $value['seconds'],
-                            'name' => ((int) $value['seconds']) === 0 ? '' : $localization->formatInterval(CarbonInterval::seconds((int) $value['seconds']))
+                            'name' => ((int) $value['seconds']) === 0 ? '' : $localization->formatIntervalForReporting(CarbonInterval::seconds((int) $value['seconds']))
                         ])->toArray()) !!},
                 itemStyle: {
                     borderColor: "#7dd3fc",
diff --git a/resources/views/reports/time-entry-index/pdf.blade.php b/resources/views/reports/time-entry-index/pdf.blade.php
index d0491054..be4265ce 100644
--- a/resources/views/reports/time-entry-index/pdf.blade.php
+++ b/resources/views/reports/time-entry-index/pdf.blade.php
@@ -138,7 +138,7 @@
         <div style="padding: 8px 12px; border-radius: 8px;">
             <div style="color: #71717a; font-weight: 600;">Duration</div>
             <div
-                style="font-size: 24px; font-weight: 500; margin-top: 2px;">{{ $localization->formatInterval(CarbonInterval::seconds($aggregatedData['seconds'])) }} </div>
+                style="font-size: 24px; font-weight: 500; margin-top: 2px;">{{ $localization->formatIntervalForReporting(CarbonInterval::seconds($aggregatedData['seconds'])) }} </div>
         </div>
         @if($showBillableRate)
         <div style="padding: 8px 12px; border-radius: 8px;">
@@ -189,7 +189,7 @@
                         {{ $localization->formatTime($timeEntry->start->timezone($timezone)) }} - {{ $localization->formatTime($timeEntry->end->timezone($timezone)) }}
                     </td>
                     <td style="overflow-wrap: break-word; min-width: 75px;">
-                        {{ $localization->formatInterval($timeEntry->getDuration()) }}
+                        {{ $localization->formatIntervalForReporting($timeEntry->getDuration()) }}
                     </td>
                     <td style="overflow-wrap: break-word;">{{ $timeEntry->billable ? 'Yes' : 'No' }}</td>
                     <td style="overflow-wrap: break-word; min-width: 75px;">{{ count($timeEntry->tagsRelation) === 0 ? '-' : $timeEntry->tagsRelation->implode('name', ', ') }}</td>
diff --git a/tests/Unit/Service/LocalizationServiceTest.php b/tests/Unit/Service/LocalizationServiceTest.php
index aa7001f3..8904eebe 100644
--- a/tests/Unit/Service/LocalizationServiceTest.php
+++ b/tests/Unit/Service/LocalizationServiceTest.php
@@ -129,6 +129,58 @@ class LocalizationServiceTest extends TestCaseWithDatabase
         $this->assertSame('30001:03:04', $formatted);
     }
 
+    public function test_format_interval_for_reporting_with_type_decimal(): void
+    {
+        // Arrange
+        $interval = CarbonInterval::seconds(4 + (60 * 3) + (60 * 60 * 30001));
+        $this->localizationService->setIntervalFormat(IntervalFormat::Decimal);
+
+        // Act
+        $formatted = $this->localizationService->formatIntervalForReporting($interval);
+
+        // Assert
+        $this->assertSame('30.001,05 h', $formatted);
+    }
+
+    public function test_format_interval_for_reporting_with_type_hours_minutes(): void
+    {
+        // Arrange
+        $interval = CarbonInterval::seconds(4 + (60 * 3) + (60 * 60 * 30001));
+        $this->localizationService->setIntervalFormat(IntervalFormat::HoursMinutes);
+
+        // Act
+        $formatted = $this->localizationService->formatIntervalForReporting($interval);
+
+        // Assert
+        $this->assertSame('30001:03:04', $formatted);
+    }
+
+    public function test_format_interval_for_reporting_with_type_hours_minutes_colon_separated(): void
+    {
+        // Arrange
+        $interval = CarbonInterval::seconds(4 + (60 * 3) + (60 * 60 * 30001));
+        $this->localizationService->setIntervalFormat(IntervalFormat::HoursMinutesColonSeparated);
+
+        // Act
+        $formatted = $this->localizationService->formatIntervalForReporting($interval);
+
+        // Assert
+        $this->assertSame('30001:03:04', $formatted);
+    }
+
+    public function test_format_interval_for_reporting_with_type_hours_minutes_seconds_colon_separated(): void
+    {
+        // Arrange
+        $interval = CarbonInterval::seconds(4 + (60 * 3) + (60 * 60 * 30001));
+        $this->localizationService->setIntervalFormat(IntervalFormat::HoursMinutesSecondsColonSeparated);
+
+        // Act
+        $formatted = $this->localizationService->formatIntervalForReporting($interval);
+
+        // Assert
+        $this->assertSame('30001:03:04', $formatted);
+    }
+
     public function test_format_currency_with_type_symbol_after_with_space_and_number_format_thousands_space_decimal_comma(): void
     {
         // Arrange