diff --git a/e2e/time.spec.ts b/e2e/time.spec.ts
index a9b72e14..58edc62e 100644
--- a/e2e/time.spec.ts
+++ b/e2e/time.spec.ts
@@ -15,6 +15,7 @@ import {
     createBareTimeEntryViaApi,
     createTimeEntryViaApi,
     updateOrganizationCurrencyViaWeb,
+    updateOrganizationSettingViaApi,
 } from './utils/api';
 
 // Date picker button name patterns for different date formats
@@ -963,7 +964,12 @@ test('test that natural language duration input works in create modal', async ({
     expect(createBody.data.duration).toBe(9000);
 });
 
-test('test that decimal duration input works in create modal', async ({ page }) => {
+test('test that decimal duration input works in create modal', async ({ page, ctx }) => {
+    // Ensure comma-point format so "1.5h" uses period as decimal
+    await updateOrganizationSettingViaApi(ctx, {
+        interval_format: 'hours-minutes',
+        number_format: 'comma-point',
+    });
     await goToTimeOverview(page);
 
     // Open the create modal
@@ -978,7 +984,6 @@ test('test that decimal duration input works in create modal', async ({ page })
         .fill('Decimal duration test');
 
     // Test decimal duration input "1.5h" (should be interpreted as 1.5 hours = 90 minutes)
-    // Note: parse-duration library requires a unit suffix for decimal values
     const durationInput = page.locator('[role="dialog"] input[name="Duration"]');
     await durationInput.fill('1.5h');
     await durationInput.press('Tab');
@@ -997,6 +1002,511 @@ test('test that decimal duration input works in create modal', async ({ page })
     expect(createBody.data.duration).toBe(5400);
 });
 
+test('test that decimal duration with comma number format does not corrupt on blur in edit modal', async ({
+    page,
+    ctx,
+}) => {
+    // Set organization to decimal interval format with European number format (comma as decimal separator)
+    await updateOrganizationSettingViaApi(ctx, {
+        interval_format: 'decimal',
+        number_format: 'point-comma',
+    });
+
+    // Create a 1-hour time entry
+    await createBareTimeEntryViaApi(ctx, 'Decimal blur test', '1h');
+    await goToTimeOverview(page);
+
+    const timeEntryRows = page.locator('[data-testid="time_entry_row"]');
+    const newTimeEntry = timeEntryRows.first();
+
+    // Open edit modal via the actions dropdown
+    const actionsDropdown = newTimeEntry
+        .getByRole('button', { name: 'Actions for the time entry' })
+        .first();
+    await actionsDropdown.click();
+    await page.getByTestId('time_entry_edit').click();
+    await expect(page.getByRole('dialog')).toBeVisible();
+
+    // The duration input should show "1,00 h" (decimal format with comma)
+    const durationInput = page.locator('[role="dialog"] input[name="Duration"]');
+    await expect(durationInput).toHaveValue('1,00 h');
+
+    // Click on the duration input and blur it without changing the value
+    await durationInput.click();
+    await durationInput.press('Tab');
+
+    // After blur, the value should remain "1,00 h" and NOT become "100,00 h"
+    await expect(durationInput).toHaveValue('1,00 h');
+
+    // Submit and verify the duration is still 3600 seconds (1 hour)
+    const [updateResponse] = await Promise.all([
+        page.waitForResponse(
+            (response) =>
+                response.url().includes('/time-entries') &&
+                response.request().method() === 'PUT' &&
+                response.status() === 200
+        ),
+        page.getByRole('button', { name: 'Update Time Entry' }).click(),
+    ]);
+    const updateBody = await updateResponse.json();
+    expect(updateBody.data.duration).toBe(3600);
+
+    // Reset organization settings
+    await updateOrganizationSettingViaApi(ctx, {
+        interval_format: 'hours-minutes',
+        number_format: 'comma-point',
+    });
+});
+
+test('test that typing bare decimal 1,5 in edit modal is interpreted as 1.5 hours', async ({
+    page,
+    ctx,
+}) => {
+    // Set organization to decimal interval format with European number format
+    await updateOrganizationSettingViaApi(ctx, {
+        interval_format: 'decimal',
+        number_format: 'point-comma',
+    });
+
+    // Create a 1-hour time entry
+    await createBareTimeEntryViaApi(ctx, 'Bare decimal test', '1h');
+    await goToTimeOverview(page);
+
+    const timeEntryRows = page.locator('[data-testid="time_entry_row"]');
+    const newTimeEntry = timeEntryRows.first();
+
+    // Open edit modal
+    const actionsDropdown = newTimeEntry
+        .getByRole('button', { name: 'Actions for the time entry' })
+        .first();
+    await actionsDropdown.click();
+    await page.getByTestId('time_entry_edit').click();
+    await expect(page.getByRole('dialog')).toBeVisible();
+
+    // Type "1,5" (bare decimal without "h" suffix) — should be interpreted as 1.5 hours
+    const durationInput = page.locator('[role="dialog"] input[name="Duration"]');
+    await durationInput.fill('1,5');
+    await durationInput.press('Tab');
+
+    // Should display as "1,50 h" (1.5 hours formatted in point-comma locale)
+    await expect(durationInput).toHaveValue('1,50 h');
+
+    // Submit and verify the duration is 5400 seconds (1.5 hours)
+    const [updateResponse] = await Promise.all([
+        page.waitForResponse(
+            (response) =>
+                response.url().includes('/time-entries') &&
+                response.request().method() === 'PUT' &&
+                response.status() === 200
+        ),
+        page.getByRole('button', { name: 'Update Time Entry' }).click(),
+    ]);
+    const updateBody = await updateResponse.json();
+    expect(updateBody.data.duration).toBe(5400);
+
+    // Reset organization settings
+    await updateOrganizationSettingViaApi(ctx, {
+        interval_format: 'hours-minutes',
+        number_format: 'comma-point',
+    });
+});
+
+test('test that typing bare decimal 1.5 in edit modal is interpreted as 1.5 hours', async ({
+    page,
+    ctx,
+}) => {
+    // Set organization to decimal interval format with default number format
+    await updateOrganizationSettingViaApi(ctx, {
+        interval_format: 'decimal',
+        number_format: 'comma-point',
+    });
+
+    // Create a 1-hour time entry
+    await createBareTimeEntryViaApi(ctx, 'Bare decimal dot test', '1h');
+    await goToTimeOverview(page);
+
+    const timeEntryRows = page.locator('[data-testid="time_entry_row"]');
+    const newTimeEntry = timeEntryRows.first();
+
+    // Open edit modal
+    const actionsDropdown = newTimeEntry
+        .getByRole('button', { name: 'Actions for the time entry' })
+        .first();
+    await actionsDropdown.click();
+    await page.getByTestId('time_entry_edit').click();
+    await expect(page.getByRole('dialog')).toBeVisible();
+
+    // Type "1.5" (bare decimal with period) — should be interpreted as 1.5 hours
+    const durationInput = page.locator('[role="dialog"] input[name="Duration"]');
+    await durationInput.fill('1.5');
+    await durationInput.press('Tab');
+
+    // Should display as "1.50 h" (1.5 hours formatted in comma-point locale)
+    await expect(durationInput).toHaveValue('1.50 h');
+
+    // Submit and verify the duration is 5400 seconds (1.5 hours)
+    const [updateResponse] = await Promise.all([
+        page.waitForResponse(
+            (response) =>
+                response.url().includes('/time-entries') &&
+                response.request().method() === 'PUT' &&
+                response.status() === 200
+        ),
+        page.getByRole('button', { name: 'Update Time Entry' }).click(),
+    ]);
+    const updateBody = await updateResponse.json();
+    expect(updateBody.data.duration).toBe(5400);
+
+    // Reset organization settings
+    await updateOrganizationSettingViaApi(ctx, {
+        interval_format: 'hours-minutes',
+        number_format: 'comma-point',
+    });
+});
+
+test('test that decimal duration with space-comma number format does not corrupt on blur in edit modal', async ({
+    page,
+    ctx,
+}) => {
+    // Set organization to decimal interval format with space-comma number format
+    await updateOrganizationSettingViaApi(ctx, {
+        interval_format: 'decimal',
+        number_format: 'space-comma',
+    });
+
+    // Create a 1-hour time entry
+    await createBareTimeEntryViaApi(ctx, 'Space-comma blur test', '1h');
+    await goToTimeOverview(page);
+
+    const timeEntryRows = page.locator('[data-testid="time_entry_row"]');
+    const newTimeEntry = timeEntryRows.first();
+
+    // Open edit modal
+    const actionsDropdown = newTimeEntry
+        .getByRole('button', { name: 'Actions for the time entry' })
+        .first();
+    await actionsDropdown.click();
+    await page.getByTestId('time_entry_edit').click();
+    await expect(page.getByRole('dialog')).toBeVisible();
+
+    // The duration input should show "1,00 h" (space-comma uses comma as decimal)
+    const durationInput = page.locator('[role="dialog"] input[name="Duration"]');
+    await expect(durationInput).toHaveValue('1,00 h');
+
+    // Blur without changing the value
+    await durationInput.click();
+    await durationInput.press('Tab');
+
+    // Should remain "1,00 h"
+    await expect(durationInput).toHaveValue('1,00 h');
+
+    // Submit and verify the duration is still 3600 seconds
+    const [updateResponse] = await Promise.all([
+        page.waitForResponse(
+            (response) =>
+                response.url().includes('/time-entries') &&
+                response.request().method() === 'PUT' &&
+                response.status() === 200
+        ),
+        page.getByRole('button', { name: 'Update Time Entry' }).click(),
+    ]);
+    const updateBody = await updateResponse.json();
+    expect(updateBody.data.duration).toBe(3600);
+
+    // Reset organization settings
+    await updateOrganizationSettingViaApi(ctx, {
+        interval_format: 'hours-minutes',
+        number_format: 'comma-point',
+    });
+});
+
+test('test that bare integer in edit modal is interpreted as minutes', async ({ page, ctx }) => {
+    await updateOrganizationSettingViaApi(ctx, {
+        interval_format: 'hours-minutes',
+        number_format: 'comma-point',
+    });
+
+    await createBareTimeEntryViaApi(ctx, 'Bare integer test', '1h');
+    await goToTimeOverview(page);
+
+    const timeEntryRows = page.locator('[data-testid="time_entry_row"]');
+    const newTimeEntry = timeEntryRows.first();
+
+    // Open edit modal
+    const actionsDropdown = newTimeEntry
+        .getByRole('button', { name: 'Actions for the time entry' })
+        .first();
+    await actionsDropdown.click();
+    await page.getByTestId('time_entry_edit').click();
+    await expect(page.getByRole('dialog')).toBeVisible();
+
+    // Type "30" — should be interpreted as 30 minutes
+    const durationInput = page.locator('[role="dialog"] input[name="Duration"]');
+    await durationInput.fill('30');
+    await durationInput.press('Tab');
+
+    // Should display as "0h 30min"
+    await expect(durationInput).toHaveValue('0h 30min');
+
+    // Submit and verify the duration is 1800 seconds (30 minutes)
+    const [updateResponse] = await Promise.all([
+        page.waitForResponse(
+            (response) =>
+                response.url().includes('/time-entries') &&
+                response.request().method() === 'PUT' &&
+                response.status() === 200
+        ),
+        page.getByRole('button', { name: 'Update Time Entry' }).click(),
+    ]);
+    const updateBody = await updateResponse.json();
+    expect(updateBody.data.duration).toBe(1800);
+});
+
+test('test that bare integer in edit modal with decimal format is interpreted as hours', async ({
+    page,
+    ctx,
+}) => {
+    await updateOrganizationSettingViaApi(ctx, {
+        interval_format: 'decimal',
+        number_format: 'comma-point',
+    });
+
+    await createBareTimeEntryViaApi(ctx, 'Bare integer decimal test', '1h');
+    await goToTimeOverview(page);
+
+    const timeEntryRows = page.locator('[data-testid="time_entry_row"]');
+    const newTimeEntry = timeEntryRows.first();
+
+    // Open edit modal
+    const actionsDropdown = newTimeEntry
+        .getByRole('button', { name: 'Actions for the time entry' })
+        .first();
+    await actionsDropdown.click();
+    await page.getByTestId('time_entry_edit').click();
+    await expect(page.getByRole('dialog')).toBeVisible();
+
+    // Type "2" — with decimal format, should be interpreted as 2 hours
+    const durationInput = page.locator('[role="dialog"] input[name="Duration"]');
+    await durationInput.fill('2');
+    await durationInput.press('Tab');
+
+    // Should display as "2.00 h"
+    await expect(durationInput).toHaveValue('2.00 h');
+
+    // Submit and verify the duration is 7200 seconds (2 hours)
+    const [updateResponse] = await Promise.all([
+        page.waitForResponse(
+            (response) =>
+                response.url().includes('/time-entries') &&
+                response.request().method() === 'PUT' &&
+                response.status() === 200
+        ),
+        page.getByRole('button', { name: 'Update Time Entry' }).click(),
+    ]);
+    const updateBody = await updateResponse.json();
+    expect(updateBody.data.duration).toBe(7200);
+
+    // Reset organization settings
+    await updateOrganizationSettingViaApi(ctx, {
+        interval_format: 'hours-minutes',
+        number_format: 'comma-point',
+    });
+});
+
+test('test that HH:MM input in edit modal works', async ({ page, ctx }) => {
+    await updateOrganizationSettingViaApi(ctx, {
+        interval_format: 'hours-minutes',
+        number_format: 'comma-point',
+    });
+
+    await createBareTimeEntryViaApi(ctx, 'HH:MM test', '1h');
+    await goToTimeOverview(page);
+
+    const timeEntryRows = page.locator('[data-testid="time_entry_row"]');
+    const newTimeEntry = timeEntryRows.first();
+
+    // Open edit modal
+    const actionsDropdown = newTimeEntry
+        .getByRole('button', { name: 'Actions for the time entry' })
+        .first();
+    await actionsDropdown.click();
+    await page.getByTestId('time_entry_edit').click();
+    await expect(page.getByRole('dialog')).toBeVisible();
+
+    // Type "1:30" — should be interpreted as 1 hour 30 minutes
+    const durationInput = page.locator('[role="dialog"] input[name="Duration"]');
+    await durationInput.fill('1:30');
+    await durationInput.press('Tab');
+
+    // Should display as "1h 30min"
+    await expect(durationInput).toHaveValue('1h 30min');
+
+    // Submit and verify the duration is 5400 seconds (1.5 hours)
+    const [updateResponse] = await Promise.all([
+        page.waitForResponse(
+            (response) =>
+                response.url().includes('/time-entries') &&
+                response.request().method() === 'PUT' &&
+                response.status() === 200
+        ),
+        page.getByRole('button', { name: 'Update Time Entry' }).click(),
+    ]);
+    const updateBody = await updateResponse.json();
+    expect(updateBody.data.duration).toBe(5400);
+});
+
+test('test that bare integer in inline duration input is interpreted as minutes', async ({
+    page,
+    ctx,
+}) => {
+    await updateOrganizationSettingViaApi(ctx, {
+        interval_format: 'hours-minutes',
+        number_format: 'comma-point',
+    });
+
+    await createBareTimeEntryViaApi(ctx, 'Inline bare integer test', '1h');
+    await goToTimeOverview(page);
+
+    const timeEntryRows = page.locator('[data-testid="time_entry_row"]');
+    const newTimeEntry = timeEntryRows.first();
+
+    // Type "45" in the inline duration input — should be 45 minutes
+    const durationInput = newTimeEntry.getByTestId('time_entry_duration_input').first();
+    await durationInput.click();
+    await durationInput.fill('45');
+
+    const [updateResponse] = await Promise.all([
+        page.waitForResponse(
+            (response) =>
+                response.url().includes('/time-entries') &&
+                response.request().method() === 'PUT' &&
+                response.status() === 200
+        ),
+        durationInput.press('Tab'),
+    ]);
+    const updateBody = await updateResponse.json();
+    expect(updateBody.data.duration).toBe(2700);
+});
+
+test('test that bare integer in inline duration input with decimal format is interpreted as hours', async ({
+    page,
+    ctx,
+}) => {
+    await updateOrganizationSettingViaApi(ctx, {
+        interval_format: 'decimal',
+        number_format: 'comma-point',
+    });
+
+    await createBareTimeEntryViaApi(ctx, 'Inline bare integer decimal test', '1h');
+    await goToTimeOverview(page);
+
+    const timeEntryRows = page.locator('[data-testid="time_entry_row"]');
+    const newTimeEntry = timeEntryRows.first();
+
+    // Type "3" in the inline duration input — with decimal format, should be 3 hours
+    const durationInput = newTimeEntry.getByTestId('time_entry_duration_input').first();
+    await durationInput.click();
+    await durationInput.fill('3');
+
+    const [updateResponse] = await Promise.all([
+        page.waitForResponse(
+            (response) =>
+                response.url().includes('/time-entries') &&
+                response.request().method() === 'PUT' &&
+                response.status() === 200
+        ),
+        durationInput.press('Tab'),
+    ]);
+    const updateBody = await updateResponse.json();
+    expect(updateBody.data.duration).toBe(10800);
+
+    // Reset organization settings
+    await updateOrganizationSettingViaApi(ctx, {
+        interval_format: 'hours-minutes',
+        number_format: 'comma-point',
+    });
+});
+
+test('test that bare integer in create modal is interpreted as minutes', async ({
+    page,
+    ctx,
+}) => {
+    await updateOrganizationSettingViaApi(ctx, {
+        interval_format: 'hours-minutes',
+        number_format: 'comma-point',
+    });
+    await goToTimeOverview(page);
+
+    // Open the create modal
+    await page.getByRole('button', { name: 'Time entry actions' }).click();
+    await page.getByRole('menuitem', { name: 'Manual time entry' }).click();
+    await expect(page.getByRole('dialog')).toBeVisible();
+
+    await page
+        .getByRole('dialog')
+        .getByRole('textbox', { name: 'Description' })
+        .fill('Bare integer create test');
+
+    // Type "30" — should be interpreted as 30 minutes
+    const durationInput = page.locator('[role="dialog"] input[name="Duration"]');
+    await durationInput.fill('30');
+    await durationInput.press('Tab');
+
+    await expect(durationInput).toHaveValue('0h 30min');
+
+    const [createResponse] = await Promise.all([
+        page.waitForResponse(
+            (response) => response.url().includes('/time-entries') && response.status() === 201
+        ),
+        page.getByRole('button', { name: 'Create Time Entry' }).click(),
+    ]);
+    const createBody = await createResponse.json();
+    expect(createBody.data.duration).toBe(1800);
+});
+
+test('test that bare integer in create modal with decimal format is interpreted as hours', async ({
+    page,
+    ctx,
+}) => {
+    await updateOrganizationSettingViaApi(ctx, {
+        interval_format: 'decimal',
+        number_format: 'comma-point',
+    });
+    await goToTimeOverview(page);
+
+    // Open the create modal
+    await page.getByRole('button', { name: 'Time entry actions' }).click();
+    await page.getByRole('menuitem', { name: 'Manual time entry' }).click();
+    await expect(page.getByRole('dialog')).toBeVisible();
+
+    await page
+        .getByRole('dialog')
+        .getByRole('textbox', { name: 'Description' })
+        .fill('Bare integer decimal create test');
+
+    // Type "2" — with decimal format, should be interpreted as 2 hours
+    const durationInput = page.locator('[role="dialog"] input[name="Duration"]');
+    await durationInput.fill('2');
+    await durationInput.press('Tab');
+
+    await expect(durationInput).toHaveValue('2.00 h');
+
+    const [createResponse] = await Promise.all([
+        page.waitForResponse(
+            (response) => response.url().includes('/time-entries') && response.status() === 201
+        ),
+        page.getByRole('button', { name: 'Create Time Entry' }).click(),
+    ]);
+    const createBody = await createResponse.json();
+    expect(createBody.data.duration).toBe(7200);
+
+    // Reset organization settings
+    await updateOrganizationSettingViaApi(ctx, {
+        interval_format: 'hours-minutes',
+        number_format: 'comma-point',
+    });
+});
+
 test('test that project selection works in create modal', async ({ page, ctx }) => {
     const projectName = 'Create Modal Project ' + Math.floor(1 + Math.random() * 10000);
     await createProjectViaApi(ctx, { name: projectName });
diff --git a/resources/js/packages/ui/src/Input/DurationHumanInput.vue b/resources/js/packages/ui/src/Input/DurationHumanInput.vue
index 7df9507e..2c0e44f3 100644
--- a/resources/js/packages/ui/src/Input/DurationHumanInput.vue
+++ b/resources/js/packages/ui/src/Input/DurationHumanInput.vue
@@ -1,7 +1,10 @@
 <script setup lang="ts">
-import parse from 'parse-duration';
 import { onMounted, ref, watch, inject } from 'vue';
-import { formatHumanReadableDuration, getDayJsInstance } from '@/packages/ui/src/utils/time';
+import {
+    formatHumanReadableDuration,
+    getDayJsInstance,
+    parseTimeInput,
+} from '@/packages/ui/src/utils/time';
 import dayjs from 'dayjs';
 import { twMerge } from 'tailwind-merge';
 import { TextInput } from '@/packages/ui/src';
@@ -20,51 +23,23 @@ const end = defineModel('end', {
 
 const organization = inject<ComputedRef<Organization>>('organization');
 
-function isHHMM(value: string): boolean {
-    return HHMMtimeRegex.test(value);
-}
-
-function parseHHMM(value: string): string[] | null {
-    return value.match(HHMMtimeRegex);
-}
-
 function updateDuration() {
-    const time = parse(temporaryCustomTimerEntry.value, 's');
-
-    if (isNumeric(temporaryCustomTimerEntry.value)) {
-        const newStartDate = getDayJsInstance()(end.value).subtract(
-            parseInt(temporaryCustomTimerEntry.value),
-            'm'
-        );
-        start.value = newStartDate.utc().format();
-    } else if (isHHMM(temporaryCustomTimerEntry.value)) {
-        const results = parseHHMM(temporaryCustomTimerEntry.value);
-        if (results) {
-            const newStartDate = getDayJsInstance()(end.value)
-                .subtract(parseInt(results[1]!), 'h')
-                .subtract(parseInt(results[2]!), 'm');
-            start.value = newStartDate.utc().format();
-        }
-    }
-    // try to parse natural language like "1h 30m"
-    else if (time && time > 1) {
-        const newStartDate = getDayJsInstance()(end.value).subtract(time, 's');
+    const seconds = parseTimeInput(
+        temporaryCustomTimerEntry.value,
+        organization?.value?.number_format,
+        organization?.value?.interval_format === 'decimal' ? 'hours' : 'minutes'
+    );
+    if (seconds && seconds > 0) {
+        const newStartDate = getDayJsInstance()(end.value).subtract(seconds, 's');
         start.value = newStartDate.utc().format();
     }
-    // fallback to minutes if just a number is given
     updateTimeEntryInputValue();
 }
 
-function isNumeric(value: string) {
-    return /^-?\d+$/.test(value);
-}
-
 const props = defineProps<{
     class?: string;
 }>();
 
-const HHMMtimeRegex = /^([0-9]{1,2}):([0-5]?[0-9])$/;
-
 watch([start, end], updateTimeEntryInputValue);
 onMounted(() => updateTimeEntryInputValue());
 
diff --git a/resources/js/packages/ui/src/Input/EstimatedTimeInput.vue b/resources/js/packages/ui/src/Input/EstimatedTimeInput.vue
index 67254a63..1f901ad0 100644
--- a/resources/js/packages/ui/src/Input/EstimatedTimeInput.vue
+++ b/resources/js/packages/ui/src/Input/EstimatedTimeInput.vue
@@ -26,8 +26,11 @@ function updateDuration() {
         return;
     }
 
-    // Use parseTimeInput with 'hours' as default unit for estimated time
-    const seconds = parseTimeInput(input, 'hours');
+    const seconds = parseTimeInput(
+        input,
+        organization?.value?.number_format,
+        'hours'
+    );
     if (seconds !== null && seconds > 0) {
         model.value = seconds;
     }
diff --git a/resources/js/packages/ui/src/TimeEntry/TimeEntryRowDurationInput.vue b/resources/js/packages/ui/src/TimeEntry/TimeEntryRowDurationInput.vue
index 8a573dd8..113befce 100644
--- a/resources/js/packages/ui/src/TimeEntry/TimeEntryRowDurationInput.vue
+++ b/resources/js/packages/ui/src/TimeEntry/TimeEntryRowDurationInput.vue
@@ -27,9 +27,11 @@ const temporaryCustomTimerEntry = ref<string>('');
 const open = ref(false);
 
 function updateTimerAndStartLiveTimerUpdate() {
-    const defaultUnit =
-        organizationSettings?.value?.intervalFormat === 'decimal' ? 'hours' : 'minutes';
-    const seconds = parseTimeInput(temporaryCustomTimerEntry.value, defaultUnit);
+    const seconds = parseTimeInput(
+        temporaryCustomTimerEntry.value,
+        organizationSettings.value.numberFormat,
+        organizationSettings.value.intervalFormat === 'decimal' ? 'hours' : 'minutes'
+    );
     if (seconds && seconds > 0) {
         let newEndDate = props.end;
         let newStartDate = props.start;
diff --git a/resources/js/packages/ui/src/TimeTracker/TimeTrackerRangeSelector.vue b/resources/js/packages/ui/src/TimeTracker/TimeTrackerRangeSelector.vue
index a706f81e..909dd25c 100644
--- a/resources/js/packages/ui/src/TimeTracker/TimeTrackerRangeSelector.vue
+++ b/resources/js/packages/ui/src/TimeTracker/TimeTrackerRangeSelector.vue
@@ -56,7 +56,7 @@ const currentTime = computed({
 });
 
 function updateTimerAndStartLiveTimerUpdate() {
-    const seconds = parseTimeInput(temporaryCustomTimerEntry.value, 'minutes');
+    const seconds = parseTimeInput(temporaryCustomTimerEntry.value);
 
     if (seconds && seconds > 0) {
         const newStartDate = dayjs().subtract(seconds, 's');
diff --git a/resources/js/packages/ui/src/utils/time.ts b/resources/js/packages/ui/src/utils/time.ts
index e55883f9..366c75d7 100644
--- a/resources/js/packages/ui/src/utils/time.ts
+++ b/resources/js/packages/ui/src/utils/time.ts
@@ -39,7 +39,31 @@ export type IntervalFormat =
     | 'hours-minutes'
     | 'hours-minutes-colon-separated'
     | 'hours-minutes-seconds-colon-separated';
-export type TimeInputUnit = 'minutes' | 'hours';
+function configureParseLocale(numberFormat?: string) {
+    switch (numberFormat) {
+        case 'point-comma':
+            parse.unit.group = '.';
+            parse.unit.decimal = ',';
+            break;
+        case 'space-comma':
+            parse.unit.group = ' ';
+            parse.unit.decimal = ',';
+            break;
+        case 'space-point':
+            parse.unit.group = ' ';
+            parse.unit.decimal = '.';
+            break;
+        case 'apostrophe-point':
+            parse.unit.group = "'";
+            parse.unit.decimal = '.';
+            break;
+        default:
+            // 'comma-point' or unset — default English
+            parse.unit.group = ',';
+            parse.unit.decimal = '.';
+            break;
+    }
+}
 
 dayjs.extend(relativeTime);
 dayjs.extend(isToday);
@@ -210,8 +234,11 @@ export function formatStartEnd(
 
 export function parseTimeInput(
     input: string,
-    defaultUnit: TimeInputUnit = 'minutes'
+    numberFormat?: string,
+    defaultUnit: 'minutes' | 'hours' = 'minutes'
 ): number | null {
+    configureParseLocale(numberFormat);
+
     // Check if input is a decimal number (hours)
     const decimalRegex = /^-?\d+[.,]\d+$/;
     if (decimalRegex.test(input)) {
@@ -219,10 +246,10 @@ export function parseTimeInput(
         return Math.round(hours * 3600);
     }
 
-    // Check if input is just a number (minutes or hours based on defaultUnit)
+    // Check if input is just a number
     if (/^-?\d+$/.test(input)) {
         const value = parseInt(input);
-        return defaultUnit === 'minutes' ? value * 60 : value * 3600;
+        return defaultUnit === 'hours' ? value * 3600 : value * 60;
     }
 
     // Check if input is in HH:MM:SS format
@@ -248,7 +275,7 @@ export function parseTimeInput(
         }
     }
 
-    // Try to parse natural language like "1h 30m"
+    // Try to parse natural language like "1h 30m" or locale-formatted like "1,00 h"
     const parsedDuration = parse(input, 's');
     if (parsedDuration && parsedDuration > 0) {
         return parsedDuration;