diff --git a/changelog.d/1513-timeline-launches-speed-buffering.md b/changelog.d/1513-timeline-launches-speed-buffering.md
index f4663019b..e84d8e205 100644
--- a/changelog.d/1513-timeline-launches-speed-buffering.md
+++ b/changelog.d/1513-timeline-launches-speed-buffering.md
@@ -1,5 +1,7 @@
 - The timeline brings launches up as the time passes them, offers play
-  speeds from real time to a week a second, and waits on each weather frame
-  until it loads instead of running past it. The time now rides in a bubble
-  over the handle. Zooming out on the globe stops while the globe is still in
-  view instead of leaving it a speck (samehkhamis, #1513).
+  speeds from real time to a week a second, and plays smoothly, holding only
+  when the next weather frame has yet to load, with a spinner by the time
+  while it waits. The time rides in a bubble over the handle. The track zooms
+  with a scroll or a pinch, drags along, and goes to the time under a tap, on
+  a phone as on a desktop. Zooming out on the globe stops while the globe is
+  still in view instead of leaving it a speck (samehkhamis, #1513).
diff --git a/src/i18n/locales/ar.json b/src/i18n/locales/ar.json
index 045eb805a..7b48aedb3 100644
--- a/src/i18n/locales/ar.json
+++ b/src/i18n/locales/ar.json
@@ -3231,5 +3231,6 @@
   "1 d/s": "يوم/ث",
   "1 wk/s": "أسبوع/ث",
   "Play speed": "سرعة التشغيل",
-  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "مرّر أو اقرص للتكبير، واسحب للتنقل · انقر نقرًا مزدوجًا لرؤية الكل"
+  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "مرّر أو اقرص للتكبير، واسحب للتنقل · انقر نقرًا مزدوجًا لرؤية الكل",
+  "1 min/s": "دقيقة/ث"
 }
diff --git a/src/i18n/locales/de.json b/src/i18n/locales/de.json
index 70aa6ab52..8433bce66 100644
--- a/src/i18n/locales/de.json
+++ b/src/i18n/locales/de.json
@@ -2951,5 +2951,6 @@
   "1 d/s": "1 Tag/s",
   "1 wk/s": "1 Wo./s",
   "Play speed": "Wiedergabegeschwindigkeit",
-  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "Scrollen oder mit zwei Fingern zoomen, ziehen zum Verschieben · Doppelklick zeigt alles"
+  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "Scrollen oder mit zwei Fingern zoomen, ziehen zum Verschieben · Doppelklick zeigt alles",
+  "1 min/s": "1 Min./s"
 }
diff --git a/src/i18n/locales/es.json b/src/i18n/locales/es.json
index 668727f02..dec285ed3 100644
--- a/src/i18n/locales/es.json
+++ b/src/i18n/locales/es.json
@@ -3021,5 +3021,6 @@
   "1 d/s": "1 d/s",
   "1 wk/s": "1 sem/s",
   "Play speed": "Velocidad de reproducción",
-  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "Desplaza o pellizca para ampliar, arrastra para moverte · doble clic para verlo todo"
+  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "Desplaza o pellizca para ampliar, arrastra para moverte · doble clic para verlo todo",
+  "1 min/s": "1 min/s"
 }
diff --git a/src/i18n/locales/fr.json b/src/i18n/locales/fr.json
index 3c4d7b29b..497318857 100644
--- a/src/i18n/locales/fr.json
+++ b/src/i18n/locales/fr.json
@@ -3021,5 +3021,6 @@
   "1 d/s": "1 j/s",
   "1 wk/s": "1 sem/s",
   "Play speed": "Vitesse de lecture",
-  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "Faites défiler ou pincez pour zoomer, glissez pour vous déplacer · double-clic pour tout voir"
+  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "Faites défiler ou pincez pour zoomer, glissez pour vous déplacer · double-clic pour tout voir",
+  "1 min/s": "1 min/s"
 }
diff --git a/src/i18n/locales/it.json b/src/i18n/locales/it.json
index e351e1ab5..16c129e66 100644
--- a/src/i18n/locales/it.json
+++ b/src/i18n/locales/it.json
@@ -3021,5 +3021,6 @@
   "1 d/s": "1 g/s",
   "1 wk/s": "1 sett/s",
   "Play speed": "Velocità di riproduzione",
-  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "Scorri o pizzica per lo zoom, trascina per spostarti · doppio clic per vedere tutto"
+  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "Scorri o pizzica per lo zoom, trascina per spostarti · doppio clic per vedere tutto",
+  "1 min/s": "1 min/s"
 }
diff --git a/src/i18n/locales/ja.json b/src/i18n/locales/ja.json
index a7df054cd..439dc191b 100644
--- a/src/i18n/locales/ja.json
+++ b/src/i18n/locales/ja.json
@@ -2881,5 +2881,6 @@
   "1 d/s": "1日/秒",
   "1 wk/s": "1週間/秒",
   "Play speed": "再生速度",
-  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "スクロールまたはピンチでズーム、ドラッグで移動 · ダブルクリックで全体表示"
+  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "スクロールまたはピンチでズーム、ドラッグで移動 · ダブルクリックで全体表示",
+  "1 min/s": "1分/秒"
 }
diff --git a/src/i18n/locales/pt.json b/src/i18n/locales/pt.json
index ba3a5f551..63e646a5a 100644
--- a/src/i18n/locales/pt.json
+++ b/src/i18n/locales/pt.json
@@ -3021,5 +3021,6 @@
   "1 d/s": "1 d/s",
   "1 wk/s": "1 sem/s",
   "Play speed": "Velocidade de reprodução",
-  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "Role ou faça pinça para ampliar, arraste para se mover · clique duplo para ver tudo"
+  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "Role ou faça pinça para ampliar, arraste para se mover · clique duplo para ver tudo",
+  "1 min/s": "1 min/s"
 }
diff --git a/src/i18n/locales/ru.json b/src/i18n/locales/ru.json
index 8648bc37d..4d93f71d9 100644
--- a/src/i18n/locales/ru.json
+++ b/src/i18n/locales/ru.json
@@ -3091,5 +3091,6 @@
   "1 d/s": "1 дн/с",
   "1 wk/s": "1 нед/с",
   "Play speed": "Скорость воспроизведения",
-  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "Прокрутите или сведите пальцы для масштаба, перетащите для перемещения · двойной щелчок — показать всё"
+  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "Прокрутите или сведите пальцы для масштаба, перетащите для перемещения · двойной щелчок — показать всё",
+  "1 min/s": "1 мин/с"
 }
diff --git a/src/i18n/locales/uk.json b/src/i18n/locales/uk.json
index 0a3872414..525405323 100644
--- a/src/i18n/locales/uk.json
+++ b/src/i18n/locales/uk.json
@@ -3091,5 +3091,6 @@
   "1 d/s": "1 дн/с",
   "1 wk/s": "1 тиж/с",
   "Play speed": "Швидкість відтворення",
-  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "Прокрутіть або зведіть пальці для масштабу, перетягніть для переміщення · подвійне клацання — показати все"
+  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "Прокрутіть або зведіть пальці для масштабу, перетягніть для переміщення · подвійне клацання — показати все",
+  "1 min/s": "1 хв/с"
 }
diff --git a/src/i18n/locales/zh-CN.json b/src/i18n/locales/zh-CN.json
index 394df0057..192f17d26 100644
--- a/src/i18n/locales/zh-CN.json
+++ b/src/i18n/locales/zh-CN.json
@@ -2881,5 +2881,6 @@
   "1 d/s": "1 天/秒",
   "1 wk/s": "1 周/秒",
   "Play speed": "播放速度",
-  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "滚动或双指缩放，拖动以移动 · 双击查看全部"
+  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "滚动或双指缩放，拖动以移动 · 双击查看全部",
+  "1 min/s": "1 分钟/秒"
 }
diff --git a/src/i18n/locales/zh-Hant.json b/src/i18n/locales/zh-Hant.json
index 21018551c..5c9292f3a 100644
--- a/src/i18n/locales/zh-Hant.json
+++ b/src/i18n/locales/zh-Hant.json
@@ -2881,5 +2881,6 @@
   "1 d/s": "1 天/秒",
   "1 wk/s": "1 週/秒",
   "Play speed": "播放速度",
-  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "捲動或雙指縮放，拖曳以移動 · 按兩下查看全部"
+  "Scroll or pinch to zoom, drag to move along · double-click to see it all": "捲動或雙指縮放，拖曳以移動 · 按兩下查看全部",
+  "1 min/s": "1 分鐘/秒"
 }
diff --git a/src/i18n/same-as-english.json b/src/i18n/same-as-english.json
index de1b51e8b..d383f1b68 100644
--- a/src/i18n/same-as-english.json
+++ b/src/i18n/same-as-english.json
@@ -203,6 +203,7 @@
     "▲ {frp} MW"
   ],
   "es": [
+    "1 min/s",
     "1090 MHz",
     "978 MHz UAT",
     "AIS: --",
@@ -331,6 +332,7 @@
     "▲ {frp} MW"
   ],
   "fr": [
+    "1 min/s",
     "1090 MHz",
     "978 MHz UAT",
     "ALTITUDE",
@@ -512,6 +514,7 @@
     "▲ {frp} MW"
   ],
   "it": [
+    "1 min/s",
     "1090 MHz",
     "978 MHz UAT",
     "AFRICA",
@@ -732,6 +735,7 @@
     "▲ {frp} MW"
   ],
   "pt": [
+    "1 min/s",
     "1090 MHz",
     "978 MHz UAT",
     "AIS: --",
diff --git a/src/ui/stores/worldTime.js b/src/ui/stores/worldTime.js
index 35cad2edc..80f51ac71 100644
--- a/src/ui/stores/worldTime.js
+++ b/src/ui/stores/worldTime.js
@@ -11,6 +11,7 @@ const LIVE_EDGE_MS = 5000;
 /** The speeds play offers, in world ms per real ms. */
 export const WORLD_TIME_SPEEDS = Object.freeze({
   real: 1,
+  minute: 60,
   hour: 3_600,
   day: 86_400,
   week: 604_800,
diff --git a/src/ui/views/panels/WorldTimeline.test.mjs b/src/ui/views/panels/WorldTimeline.test.mjs
index 3725d9abc..073d6f95e 100644
--- a/src/ui/views/panels/WorldTimeline.test.mjs
+++ b/src/ui/views/panels/WorldTimeline.test.mjs
@@ -232,6 +232,10 @@ test('the speed chosen sets how fast play runs, at once while playing', async (t
   await nextTick();
   const select = bar().querySelector('select.world-timeline-speed');
   assert.equal(select.value, 'real');
+  assert.deepEqual(
+    [...select.options].map((option) => option.value),
+    ['real', 'minute', 'hour', 'day', 'week'],
+  );
   select.value = 'week';
   select.dispatchEvent(new Event('change'));
   await nextTick();
@@ -242,6 +246,10 @@ test('the speed chosen sets how fast play runs, at once while playing', async (t
   await nextTick();
   assert.equal(worldClock.isPlaying(), true);
   assert.equal(worldClock.getRate(), 3_600, 'changed while playing');
+  select.value = 'minute';
+  select.dispatchEvent(new Event('change'));
+  await nextTick();
+  assert.equal(worldClock.getRate(), 60, 'a minute a second');
   select.value = 'real';
   select.dispatchEvent(new Event('change'));
   await nextTick();
diff --git a/src/ui/views/panels/WorldTimeline.vue b/src/ui/views/panels/WorldTimeline.vue
index a58e22139..866380638 100644
--- a/src/ui/views/panels/WorldTimeline.vue
+++ b/src/ui/views/panels/WorldTimeline.vue
@@ -20,6 +20,7 @@ const store = useWorldTimeStore();
 const { time, speed } = storeToRefs(store);
 const speeds = computed(() => [
   { value: 'real', label: '1×' },
+  { value: 'minute', label: t('1 min/s') },
   { value: 'hour', label: t('1 h/s') },
   { value: 'day', label: t('1 d/s') },
   { value: 'week', label: t('1 wk/s') },