From 1b33337c896af1ec576b670350c896c45240d03a Mon Sep 17 00:00:00 2001
From: David Nguyen <h250694@gmail.com>
Date: Wed, 14 Oct 2026 20:56:09 +0700
Subject: [PATCH 1/8] feat(schedule): proportional ICT hourly timeline layout
 through next midnight

---
 utils/station-schedule.mjs | 48 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/utils/station-schedule.mjs b/utils/station-schedule.mjs
index 99c5ef54..afb163a2 100644
--- a/utils/station-schedule.mjs
+++ b/utils/station-schedule.mjs
@@ -86,3 +86,51 @@ export const scheduleTimelineProgress = (startSeconds, endSeconds, nowSeconds) =
       || !Number.isFinite(nowSeconds) || endSeconds <= startSeconds) return null;
   return Math.min(100, Math.max(0, (nowSeconds - startSeconds) * 100 / (endSeconds - startSeconds)));
 };
+
+// Fixed-scale broadcast timeline. Unix timestamps stay in Vietnam's ICT zone:
+// no browser-local timezone or daylight-saving conversion can move a programme.
+export const SCHEDULE_TIMELINE_HOUR_PX = 76;
+export const referenceTimelineLayout = (programs, nowSeconds, hourPixels = SCHEDULE_TIMELINE_HOUR_PX) => {
+  if (!Array.isArray(programs) || !programs.length || !Number.isFinite(nowSeconds)
+    || !Number.isFinite(hourPixels) || hourPixels <= 0) return null;
+  const sorted = programs.filter(item =>
+    Number.isFinite(item?.startTime) && Number.isFinite(item?.endTime)
+    && item.endTime > item.startTime
+  ).slice().sort((a, b) => a.startTime - b.startTime);
+  if (!sorted.length) return null;
+  const vietnamOffset = 7 * 3600;
+  const dayStart = Math.floor((sorted[0].startTime + vietnamOffset) / 86400) * 86400 - vietnamOffset;
+  // Display a continuous hourly ruler through 03:00 of the following day.
+  // Keep longer source events visible without clipping them at midnight.
+  const lastEnd = Math.max(...sorted.map(item => item.endTime));
+  const hourCount = Math.max(27, Math.ceil((lastEnd - dayStart) / 3600) + 2);
+  const timeTop = seconds => (seconds - dayStart) / 3600 * hourPixels;
+  const programsLayout = sorted.map((item, index) => ({
+    index,
+    item,
+    top: timeTop(item.startTime),
+    height: Math.max(1, timeTop(item.endTime) - timeTop(item.startTime)),
+    active: item.startTime <= nowSeconds && nowSeconds < item.endTime,
+  }));
+  const gap = referenceScheduleGap(sorted, nowSeconds);
+  const previous = gap?.insertIndex > 0 ? sorted[gap.insertIndex - 1] : null;
+  const next = gap && gap.insertIndex < sorted.length ? sorted[gap.insertIndex] : null;
+  return {
+    dayStart,
+    height: hourCount * hourPixels,
+    hours: Array.from({ length: hourCount + 1 }, (_, index) => ({
+      time: dayStart + index * 3600,
+      top: index * hourPixels,
+      nextDay: index > 0 && index % 24 === 0,
+    })),
+    programmes: programsLayout,
+    nowTop: nowSeconds >= dayStart && nowSeconds <= dayStart + hourCount * 3600
+      ? timeTop(nowSeconds) : null,
+    // An unknown interval is neutral metadata, never a live station status.
+    gap: gap ? {
+      ...gap,
+      startTime: previous?.endTime ?? dayStart,
+      endTime: next?.startTime ?? dayStart + hourCount * 3600,
+    } : null,
+  };
+};

From fd1b87abe77e3e0cd36dfc63f772de220a0fefbd Mon Sep 17 00:00:00 2001
From: David Nguyen <h250694@gmail.com>
Date: Wed, 14 Oct 2026 20:57:47 +0700
Subject: [PATCH 2/8] feat(ui): hourly vertical EPG grid with
 duration-proportional programme blocks and moving green NOW line

---
 components/player/ScheduleTimeline.vue | 109 +++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 components/player/ScheduleTimeline.vue

diff --git a/components/player/ScheduleTimeline.vue b/components/player/ScheduleTimeline.vue
new file mode 100644
index 00000000..faccc796
--- /dev/null
+++ b/components/player/ScheduleTimeline.vue
@@ -0,0 +1,109 @@
+<template>
+  <!-- One continuous day ruler; durations use real elapsed clock time. -->
+  <div v-if="layout" data-schedule-timeline
+    class="radio-schedule-timeline relative isolate ml-0.5 mr-1"
+    :style="{ height: layout.height + 'px' }"
+    role="group" :aria-label="$t('panel.schedule')">
+    <div v-for="hour in layout.hours" :key="hour.time"
+      class="pointer-events-none absolute inset-x-0 z-0 flex items-start gap-2"
+      :style="{ top: hour.top + 'px' }">
+      <div class="w-12 shrink-0 -translate-y-2 text-[11px] font-semibold tabular-nums text-[var(--radio-text-muted)]">
+        <span v-if="hour.nextDay" class="text-rose-700 dark:text-rose-300">{{ formatDate(hour.time) }}</span>
+        <span v-else>{{ formatHour(hour.time) }}</span>
+      </div>
+      <span class="h-px flex-1 bg-[var(--radio-border)]"></span>
+    </div>
+
+    <div class="absolute inset-y-0 left-[52px] right-0 border-l border-[var(--radio-border)]"
+      aria-hidden="true"></div>
+
+    <div v-for="block in layout.programmes" :key="block.item.startTime + '-' + block.index"
+      :data-program-index="block.index"
+      class="absolute left-[54px] right-1 z-10 overflow-hidden rounded-md border-l-[3px] transition-colors"
+      :class="block.active
+        ? 'border-rose-500 bg-rose-950/[0.88] text-white shadow-sm shadow-rose-950/30'
+        : 'border-rose-500/40 bg-rose-500/[0.09] text-[var(--radio-text)] dark:bg-rose-950/40'"
+      :style="{ top: block.top + 'px', height: block.height + 'px' }"
+      :aria-label="formatHour(block.item.startTime) + '–' + formatHour(block.item.endTime) + ': ' + (block.item.title || $t('panel.updating'))">
+      <div class="flex h-full min-w-0 items-start gap-2 overflow-hidden p-2"
+        :class="block.height < 40 ? 'py-0.5' : ''">
+        <img v-if="block.active && thumb && block.height >= 52"
+          :src="siteAssetUrl(thumb)" :alt="stationName"
+          loading="lazy"
+          class="h-10 w-10 shrink-0 rounded-md bg-white/90 p-1 object-contain" />
+        <div class="min-w-0">
+          <span v-if="block.height >= 56" class="block text-[10px] font-semibold opacity-75">
+            {{ formatHour(block.item.startTime) }}–{{ formatHour(block.item.endTime) }}
+          </span>
+          <p dir="auto" class="truncate text-xs font-semibold sm:text-sm">
+            {{ block.item.title || $t('panel.updating') }}
+          </p>
+          <p v-if="block.item.description && block.height >= 90"
+            class="mt-1 line-clamp-2 text-xs opacity-80">{{ block.item.description }}</p>
+        </div>
+      </div>
+    </div>
+
+    <template v-if="layout.nowTop !== null">
+      <!-- Follows the ICT wall clock each second. Does not depend on audio
+           playback and must not claim that an unspecified show is live. -->
+      <div data-schedule-now
+        class="pointer-events-none absolute inset-x-0 z-30 h-0 border-t-2 border-emerald-400 motion-safe:transition-[top] motion-safe:duration-1000 motion-safe:ease-linear"
+        :style="{ top: layout.nowTop + 'px' }">
+        <span data-schedule-clock role="timer"
+          class="absolute left-0 top-0 -translate-y-1/2 rounded bg-emerald-400 px-1.5 py-0.5 text-[11px] font-bold tabular-nums text-emerald-950 shadow-sm">
+          {{ formattedNow }}
+        </span>
+        <span class="absolute -top-1 left-[50px] h-2 w-2 rounded-full border border-emerald-200 bg-emerald-500"></span>
+      </div>
+
+      <div v-if="layout.gap" data-schedule-gap
+        class="pointer-events-none absolute left-[59px] right-3 z-20 rounded-lg border border-[var(--radio-border)] bg-[var(--radio-surface)]/95 px-2.5 py-1.5 shadow-md"
+        :style="{ top: Math.min(layout.height - 72, layout.nowTop + 10) + 'px' }">
+        <p class="text-[11px] font-semibold leading-4 text-[var(--radio-text)]">
+          {{ $t('panel.schedule_gap_unknown') }}
+        </p>
+        <p class="mt-0.5 truncate text-[10px] leading-4 text-[var(--radio-text-muted)]">
+          {{ layout.gap.nextStartTime && layout.gap.nextTitle
+            ? $t('panel.schedule_gap_next', {
+              title: layout.gap.nextTitle, time: formatHour(layout.gap.nextStartTime),
+            })
+            : $t('panel.schedule_gap_no_next') }}
+        </p>
+      </div>
+    </template>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { referenceTimelineLayout } from '~/utils/station-schedule.mjs';
+
+interface TimelineProgramme {
+  startTime?: number;
+  endTime?: number;
+  title?: string;
+  description?: string;
+}
+const props = defineProps<{
+  program: TimelineProgramme[];
+  timestamp: number;
+  thumb?: string;
+  stationName: string;
+}>();
+
+const layout = computed(() => referenceTimelineLayout(props.program, props.timestamp));
+const hourFormatter = new Intl.DateTimeFormat('en-GB', {
+  timeZone: 'Asia/Ho_Chi_Minh', hour: '2-digit', minute: '2-digit', hourCycle: 'h23',
+});
+const secondsFormatter = new Intl.DateTimeFormat('en-GB', {
+  timeZone: 'Asia/Ho_Chi_Minh', hour: '2-digit', minute: '2-digit',
+  second: '2-digit', hourCycle: 'h23',
+});
+const dateFormatter = new Intl.DateTimeFormat('en-GB', {
+  timeZone: 'Asia/Ho_Chi_Minh', day: '2-digit', month: '2-digit',
+});
+const formatHour = (time: number) => hourFormatter.format(new Date(time * 1000));
+const formatDate = (time: number) => dateFormatter.format(new Date(time * 1000));
+const formattedNow = computed(() => secondsFormatter.format(new Date(props.timestamp * 1000)));
+const siteAssetUrl = useSiteAssetUrl();
+</script>

From c34aa9d2b3ae3a8d9c1b393bbf236c82f511b7c8 Mon Sep 17 00:00:00 2001
From: David Nguyen <h250694@gmail.com>
Date: Wed, 14 Oct 2026 20:58:38 +0700
Subject: [PATCH 3/8] feat(queue): render time-scaled vertical programme grid
 for Vietnamese reference schedules and center real-time clock

---
 components/player/Queue.vue | 24 ++++++++++++++++++------
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/components/player/Queue.vue b/components/player/Queue.vue
index 8911a0ef..15b79941 100644
--- a/components/player/Queue.vue
+++ b/components/player/Queue.vue
@@ -145,8 +145,18 @@
         </div>
       </div>
 
-      <div v-else-if="activeTab === 'schedule' && hasSchedule" class="space-y-1">
-        <template v-if="program.length">
+      <div v-else-if="activeTab === 'schedule' && hasSchedule"
+        :class="scheduleIsReference && program.length ? '' : 'space-y-1'">
+        <!-- Broadcast timeline is a time-scaled canvas. Keep legacy remote
+             provider EPG as a compact list because it lacks reliable intervals. -->
+        <PlayerScheduleTimeline
+          v-if="scheduleIsReference && program.length"
+          :program="program"
+          :timestamp="scheduleNow"
+          :thumb="thumb"
+          :station-name="stationName"
+        />
+        <template v-else-if="program.length">
           <template v-for="(item, index) in program" :key="programKey(item, index)">
             <PlayerScheduleGap
               v-if="scheduleGap?.insertIndex === index"
@@ -396,11 +406,13 @@ const jumpToSchedulePosition = async () => {
   if (generation !== scrollGeneration || activeTab.value !== 'schedule' || !props.visible) return;
   const container = scheduleScrollContainer.value;
   const index = schedulePositionNow.value.scrollIndex;
-  const row = scheduleGap.value
+  const row = props.scheduleIsReference
     ? container?.querySelector<HTMLElement>('[data-schedule-now]')
-    : index < 0 ? null : container?.querySelector<HTMLElement>(
-      `[data-program-index="${index}"]`,
-    );
+    : scheduleGap.value
+      ? container?.querySelector<HTMLElement>('[data-schedule-now]')
+      : index < 0 ? null : container?.querySelector<HTMLElement>(
+        `[data-program-index="${index}"]`,
+      );
   if (!container || !row || container.clientHeight === 0) return;
   const containerRect = container.getBoundingClientRect();
   const rowRect = row.getBoundingClientRect();

From 141655ceadb1ad847b1aed799cd40bb0eb712be4 Mon Sep 17 00:00:00 2001
From: David Nguyen <h250694@gmail.com>
Date: Wed, 14 Oct 2026 21:00:06 +0700
Subject: [PATCH 4/8] test(schedule): proportional hourly timeline, 16:29
 moving line, gap transition and next-day grid

---
 tests/station-schedule.test.mjs | 60 +++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)

diff --git a/tests/station-schedule.test.mjs b/tests/station-schedule.test.mjs
index 85fca521..371dbf7f 100644
--- a/tests/station-schedule.test.mjs
+++ b/tests/station-schedule.test.mjs
@@ -6,6 +6,9 @@ import {
   normalizeScheduleUrl,
   schedulePosition,
   referenceScheduleGap,
+  referenceTimelineLayout,
+  SCHEDULE_TIMELINE_HOUR_PX,
+  scheduleTimelineProgress,
   scheduleTimelineProgress,
 } from "../utils/station-schedule.mjs";
 
@@ -165,3 +168,60 @@ test('live time bar is wired to a one-second clock only for visible reference gu
   assert.match(gap, /data-schedule-time-progress/);
   assert.match(gap, /timelineProgress \+ '%'/);
 });
+
+test('timeline uses proportional clock time rather than equal-height station cards', async () => {
+  const { vietnamReferencePrograms } = await import('../utils/vietnam-schedules.mjs');
+  const now = Date.parse('2026-10-14T08:00:00Z') / 1000; // 15:00 ICT
+  const programmes = vietnamReferencePrograms('/asia/viet-nam/vov-gt-hcm', new Date(now * 1000));
+  const layout = referenceTimelineLayout(programmes, now);
+  assert.ok(layout);
+  assert.equal(SCHEDULE_TIMELINE_HOUR_PX, 76);
+  assert.equal(new Date(layout.dayStart * 1000).toISOString(), '2026-10-13T17:00:00.000Z');
+  assert.equal(layout.height, 27 * 76);
+  assert.equal(layout.hours.length, 28);
+  assert.equal(layout.hours[24].nextDay, true);
+  assert.equal(layout.hours[24].time, layout.dayStart + 86400);
+  assert.equal(layout.programmes[0].top, 4 * 76);
+  assert.equal(layout.programmes[0].height, 76); // 04:00–05:00
+  assert.equal(layout.programmes[6].height, 1.75 * 76); // FM91 14:30–16:15
+  assert.equal(layout.programmes[6].active, true);
+  assert.equal(layout.nowTop, 15 * 76);
+  assert.equal(layout.gap, null);
+  assert.equal(scheduleTimelineProgress(programmes[6].startTime, programmes[6].endTime, now),
+    (30 / 105) * 100);
+});
+
+test('timeline puts the green NOW line at 16:29 in the unpublished 16:15–16:30 window', async () => {
+  const { vietnamReferencePrograms } = await import('../utils/vietnam-schedules.mjs');
+  const before = Date.parse('2026-10-14T09:29:00Z') / 1000;
+  const programmes = vietnamReferencePrograms('/asia/viet-nam/vov-gt-hcm', new Date(before * 1000));
+  const gapLayout = referenceTimelineLayout(programmes, before);
+  assert.ok(Math.abs(gapLayout.nowTop - (16 + 29 / 60) * 76) < 1e-7);
+  assert.equal(gapLayout.programmes.some(block => block.active), false);
+  assert.equal(gapLayout.gap.startTime, Date.parse('2026-10-14T09:15:00Z') / 1000);
+  assert.equal(gapLayout.gap.endTime, Date.parse('2026-10-14T09:30:00Z') / 1000);
+  assert.equal(gapLayout.gap.nextTitle, 'Giờ cao điểm chiều');
+  const liveLayout = referenceTimelineLayout(programmes, before + 60);
+  assert.equal(liveLayout.gap, null);
+  assert.equal(liveLayout.programmes[7].active, true);
+  assert.equal(liveLayout.nowTop - gapLayout.nowTop, 76 / 60);
+});
+
+test('timeline continues past midnight with next-date axis and bounded progress', () => {
+  const programmes = [{
+    startTime: Date.parse('2026-10-14T12:00:00Z') / 1000,
+    endTime: Date.parse('2026-10-15T01:30:00Z') / 1000,
+    title: 'Night programme',
+  }];
+  const now = Date.parse('2026-10-14T20:50:00Z') / 1000; // 03:50 ICT next day
+  const layout = referenceTimelineLayout(programmes, now);
+  assert.ok(layout.hours.some(hour => hour.nextDay));
+  assert.equal(layout.programmes[0].height, 13.5 * 76);
+  assert.equal(layout.nowTop, (27 + 50 / 60) * 76);
+  assert.ok(layout.height > layout.nowTop);
+  assert.equal(scheduleTimelineProgress(100, 200, 50), 0);
+  assert.equal(scheduleTimelineProgress(100, 200, 250), 100);
+  assert.equal(scheduleTimelineProgress(100, 100, 100), null);
+  assert.equal(scheduleTimelineProgress(undefined, 200, 150), null);
+  assert.equal(referenceTimelineLayout([], now), null);
+});

From dd6669ab1ca46b7b92abd3d038bf4a5e4f0f17cb Mon Sep 17 00:00:00 2001
From: David Nguyen <h250694@gmail.com>
Date: Wed, 14 Oct 2026 21:01:04 +0700
Subject: [PATCH 5/8] test(browser): time-scaled VOV grid, moving
 second-by-second line, midnight and manual-scroll behavior

---
 tests/browser/schedule-autoscroll.spec.mjs | 46 ++++++++++++----------
 1 file changed, 26 insertions(+), 20 deletions(-)

diff --git a/tests/browser/schedule-autoscroll.spec.mjs b/tests/browser/schedule-autoscroll.spec.mjs
index 91f19d42..4da9d96e 100644
--- a/tests/browser/schedule-autoscroll.spec.mjs
+++ b/tests/browser/schedule-autoscroll.spec.mjs
@@ -18,6 +18,9 @@ test('VOV Giao thông guide opens at the current Vietnam programme, not the firs
   const current = visibleCurrent(page);
   await expect(current).toBeVisible();
   await expect(current).toContainText('FM91');
+  await expect(queue(page).locator('[data-schedule-timeline]')).toBeVisible();
+  await expect(current).toHaveAttribute('style', /height: 133px/);
+  await expect(queue(page).locator('[data-schedule-now]')).toContainText('15:00:00');
   await expect.poll(() => scroll.evaluate(element => element.scrollTop)).toBeGreaterThan(40);
   await expect.poll(() => current.evaluate(row => {
     const viewport = row.closest('.radio-scrollbar').getBoundingClientRect();
@@ -42,36 +45,39 @@ test('VOV Giao thông guide opens at the current Vietnam programme, not the firs
   await expect.poll(() => scroll.evaluate(element => element.scrollTop)).toBeGreaterThan(40);
 });
 
-test('16:29 ICT shows a Now marker in an unlisted interval, then switches to 16:30 programme', async ({ page }) => {
+test('16:29 ICT draws a moving green NOW line across an empty time gap', async ({ page }) => {
   await page.setViewportSize({ width: 1536, height: 900 });
-  // 09:29 UTC = 16:29 ICT, exactly between FM91 (ends 16:15)
-  // and Giờ cao điểm chiều (starts 16:30).
   await page.clock.install({ time: new Date('2026-10-14T09:29:00Z') });
   await page.goto('/asia/viet-nam/vov-gt-hcm');
   await page.waitForFunction(() => Boolean(document.querySelector('#__nuxt')?.__vue_app__));
   await page.locator('.radio-player-dock').getByRole('button', { name: 'Channels & schedule' }).click();
   await queue(page).getByRole('tab', { name: /Schedule/ }).click();
 
-  const marker = queue(page).locator('[data-schedule-now]');
-  await expect(marker).toBeVisible();
-  await expect(marker).toContainText('16:29');
-  await expect(marker).toContainText('No programme details are listed for this time');
-  await expect(marker).toContainText('Giờ cao điểm chiều');
-  await expect(marker).toContainText('16:30');
+  const timeline = queue(page).locator('[data-schedule-timeline]');
+  const marker = timeline.locator('[data-schedule-now]');
+  const unknown = timeline.locator('[data-schedule-gap]');
+  await expect(timeline).toBeVisible();
+  await expect(marker).toContainText('16:29:00');
+  await expect(unknown).toContainText('No programme details are listed for this time');
+  await expect(unknown).toContainText('Giờ cao điểm chiều');
+  await expect(unknown).toContainText('16:30');
   await expect.poll(() => marker.evaluate(row => {
     const viewport = row.closest('.radio-scrollbar').getBoundingClientRect();
     const box = row.getBoundingClientRect();
-    return box.top >= viewport.top && box.bottom <= viewport.bottom;
+    return box.top >= viewport.top && box.top <= viewport.bottom;
   })).toBe(true);
 
-  const nextSlot = queue(page).locator('[data-program-index="7"]');
-  await expect(nextSlot.locator('.absolute.inset-y-2')).toHaveCount(0);
-
-  // No invented live programme during the gap; exactly at 16:30 the
-  // synthetic marker vanishes and the next actual reference slot is active.
-  await page.clock.runFor(60_000);
-  await expect(marker).toHaveCount(0);
-  await expect(nextSlot.locator('.absolute.inset-y-2')).toHaveCount(1);
+  const nextSlot = timeline.locator('[data-program-index="7"]');
+  await expect(nextSlot).not.toHaveClass(/bg-rose-950\/\[0\.88\]/);
+  const firstTop = await marker.evaluate(element => parseFloat(element.style.top));
+  await page.clock.runFor(30_000);
+  await expect(marker).toContainText('16:29:30');
+  expect(await marker.evaluate(element => parseFloat(element.style.top))).toBeGreaterThan(firstTop);
+
+  await page.clock.runFor(30_000);
+  await expect(unknown).toHaveCount(0);
+  await expect(marker).toContainText('16:30:00');
+  await expect(nextSlot).toHaveClass(/bg-rose-950/);
 });
 
 test('manual browsing in a missing-guide window does not get auto-recentered', async ({ page }) => {
@@ -84,8 +90,8 @@ test('manual browsing in a missing-guide window does not get auto-recentered', a
 
   const scroll = scrollArea(page);
   const marker = queue(page).locator('[data-schedule-now]');
-  await expect(marker).toContainText('11:30');
-  await expect(marker).toContainText('12:30');
+  await expect(marker).toContainText('11:30:00');
+  await expect(queue(page).locator('[data-schedule-gap]')).toContainText('12:30');
   await scroll.evaluate(node => { node.scrollTop = 0; });
   await scroll.dispatchEvent('wheel', { deltaY: -200, bubbles: true });
   await page.clock.runFor(16_000);

From 0b9356bf403d4e43f83d0b37a64486e7b4b8e201 Mon Sep 17 00:00:00 2001
From: David Nguyen <h250694@gmail.com>
Date: Wed, 14 Oct 2026 21:02:03 +0700
Subject: [PATCH 6/8] docs(schedule): explain vertical hour grid, moving live
 marker and unlisted periods

---
 docs/VIETNAM_SCHEDULES.md | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/docs/VIETNAM_SCHEDULES.md b/docs/VIETNAM_SCHEDULES.md
index ea8f2a67..febdf635 100644
--- a/docs/VIETNAM_SCHEDULES.md
+++ b/docs/VIETNAM_SCHEDULES.md
@@ -61,3 +61,34 @@ boundary, the synthetic gap marker disappears and the real schedule row takes
 over. See `referenceScheduleGap` in `utils/station-schedule.mjs` and the
 regressions in `tests/station-schedule.test.mjs` and
 `tests/browser/schedule-autoscroll.spec.mjs`.
+
+## Vertical broadcast timeline
+
+The reference-guide Queue now uses a real **hourly vertical EPG**, instead
+of equally tall programme cards. Every hour on the left has an aligned grid
+line, and each station programme occupies a duration-proportional column
+block (76 CSS pixels per hour). The visible ruler continues past **midnight**
+with the next Vietnam calendar date and early next-day hours.
+
+A **green now line** crosses the grid at the correct clock position. Its
+HH:mm:ss badge and position advance once per second using the
+`Asia/Ho_Chi_Minh` clock, regardless of the user's local timezone. This is
+a **schedule clock**, *not audio playback progress*; radio can be paused or
+offline while the reference clock still indicates wall time.
+
+At an unpublished interval such as the 16:15–16:30 VOV Giao thông HCM gap,
+the grid remains visually empty of invented programme blocks and shows the
+neutral message plus the next listed programme beside the current-time line.
+No false "currently broadcasting" claim is made. At the 16:30 boundary, the
+new real programme becomes highlighted automatically.
+
+When the Queue/Schedule opens, the scrollbar centers the **now line** inside
+the list. The listener can scroll to other periods without being pulled back;
+a dedicated **Jump to current time** button restores the view. The existing
+compact list remains in place for non-reference provider EPGs that lack
+reliable programme start/end timestamps.
+
+`referenceTimelineLayout` and `scheduleTimelineProgress` in
+`utils/station-schedule.mjs` contain the timezone-aware geometry and
+boundary maths. Regression coverage includes program length, next-day
+ticks, a 16:29 gap and the 16:30 transition.

From ce299cf76495342a9c7a00d3d7ce6c6a38c0a2cc Mon Sep 17 00:00:00 2001
From: David Nguyen <h250694@gmail.com>
Date: Wed, 14 Oct 2026 21:04:31 +0700
Subject: [PATCH 7/8] test(schedule): eliminate duplicate timeline progress
 import

---
 tests/station-schedule.test.mjs | 1 -
 1 file changed, 1 deletion(-)

diff --git a/tests/station-schedule.test.mjs b/tests/station-schedule.test.mjs
index 371dbf7f..3f67fea9 100644
--- a/tests/station-schedule.test.mjs
+++ b/tests/station-schedule.test.mjs
@@ -9,7 +9,6 @@ import {
   referenceTimelineLayout,
   SCHEDULE_TIMELINE_HOUR_PX,
   scheduleTimelineProgress,
-  scheduleTimelineProgress,
 } from "../utils/station-schedule.mjs";
 
 test("normalizes only real HTTP schedule URLs", () => {

From a55b9d3d8b73f25fbedb34f43048494edcc4cc1c Mon Sep 17 00:00:00 2001
From: David Nguyen <h250694@gmail.com>
Date: Wed, 14 Oct 2026 21:06:18 +0700
Subject: [PATCH 8/8] test(schedule): compare floating-point timeline
 proportions within safe tolerance

---
 tests/station-schedule.test.mjs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tests/station-schedule.test.mjs b/tests/station-schedule.test.mjs
index 3f67fea9..145cfa66 100644
--- a/tests/station-schedule.test.mjs
+++ b/tests/station-schedule.test.mjs
@@ -186,8 +186,8 @@ test('timeline uses proportional clock time rather than equal-height station car
   assert.equal(layout.programmes[6].active, true);
   assert.equal(layout.nowTop, 15 * 76);
   assert.equal(layout.gap, null);
-  assert.equal(scheduleTimelineProgress(programmes[6].startTime, programmes[6].endTime, now),
-    (30 / 105) * 100);
+  assert.ok(Math.abs(scheduleTimelineProgress(programmes[6].startTime, programmes[6].endTime, now)
+    - (30 / 105) * 100) < 1e-9);
 });
 
 test('timeline puts the green NOW line at 16:29 in the unpublished 16:15–16:30 window', async () => {
@@ -203,7 +203,7 @@ test('timeline puts the green NOW line at 16:29 in the unpublished 16:15–16:30
   const liveLayout = referenceTimelineLayout(programmes, before + 60);
   assert.equal(liveLayout.gap, null);
   assert.equal(liveLayout.programmes[7].active, true);
-  assert.equal(liveLayout.nowTop - gapLayout.nowTop, 76 / 60);
+  assert.ok(Math.abs((liveLayout.nowTop - gapLayout.nowTop) - 76 / 60) < 1e-9);
 });
 
 test('timeline continues past midnight with next-date axis and bounded progress', () => {