diff --git a/Codes.xml b/Codes.xml
index 3a48e50..2d9644a 100644
--- a/Codes.xml
+++ b/Codes.xml
@@ -4221,4 +4221,156 @@
             040eb024 60000000
         </source>
     </code>
+    <code>
+        <id>qfst</id>
+        <category>misc</category>
+        <title lang="en-US">Quarterframe Section Timer</title>
+        <title lang="ja-JP">QFセクションタイマー</title>
+        <author>sup39(サポミク)</author>
+        <version>0.1</version>
+        <date>Jan 31, 2023</date>
+        <dependencies>drawText</dependencies>
+        <description lang="en-US">
+            Calculate and display section times whenever Quarterframe Timer freezes.
+        </description>
+        <description lang="ja-JP">
+            QFタイマーが一時停止する度にセクションタイムを計算して表示します。
+        </description>
+        <source version="GMSJ01">
+            C20F9DD0 00000003
+            3C60817F 3BA00004
+            93A303CC 3BA00000
+            B3A303CA 00000000
+            C22069E4 0000001B
+            3821FFD0 BF210008
+            3F20817F AB9903B2
+            3BF903D0 A3D903CA
+            7F9DE378 835903B4
+            80D900BC 28060000
+            41A2002C 809900B8
+            80B903CC 7C042800
+            40A1001C 7C052050
+            57CC16BA 7C1F612E
+            909903CC 3BDE0001
+            B3D903CA 3879039C
+            389903AC 3D808020
+            398C1EA8 7D8803A6
+            4E800021 57DBE13F
+            41820008 3B7EFFF0
+            7C1BF040 4080004C
+            576316BA 7C1F182E
+            1D6003E9 38000078
+            7D6B0396 380003E8
+            7CAB0396 1C0503E8
+            7CC05850 387903B0
+            389903C0 39990238
+            7D8803A6 4E800021
+            7FBDD214 3B7B0001
+            B3B903B2 4BFFFFB4
+            B39903B2 BB210008
+            38210030 00000000
+        </source>
+        <source version="GMSJ0A">
+            C2286228 00000003
+            3C60817F 3BA00004
+            93A303CC 3BA00000
+            B3A303CA 00000000
+            C2125550 0000001B
+            3821FFD0 BF210008
+            3F20817F AB9903B2
+            3BF903D0 A3D903CA
+            7F9DE378 835903B4
+            80D900BC 28060000
+            41A2002C 809900B8
+            80B903CC 7C042800
+            40A1001C 7C052050
+            57CC16BA 7C1F612E
+            909903CC 3BDE0001
+            B3D903CA 3879039C
+            389903AC 3D808012
+            398C1660 7D8803A6
+            4E800021 57DBE13F
+            41820008 3B7EFFF0
+            7C1BF040 4080004C
+            576316BA 7C1F182E
+            1D6003E9 38000078
+            7D6B0396 380003E8
+            7CAB0396 1C0503E8
+            7CC05850 387903B0
+            389903C0 39990238
+            7D8803A6 4E800021
+            7FBDD214 3B7B0001
+            B3B903B2 4BFFFFB4
+            B39903B2 BB210008
+            38210030 00000000
+        </source>
+        <source version="GMSP01">
+            C229E2DC 00000003
+            3C60817F 3BA00004
+            93A303CC 3BA00000
+            B3A303CA 00000000
+            C2138E00 0000001B
+            3821FFD0 BF210008
+            3F20817F AB9903B2
+            3BF903D0 A3D903CA
+            7F9DE378 835903B4
+            80D900BC 28060000
+            41A2002C 809900B8
+            80B903CC 7C042800
+            40A1001C 7C052050
+            57CC16BA 7C1F612E
+            909903CC 3BDE0001
+            B3D903CA 3879039C
+            389903AC 3D808013
+            398C4F0C 7D8803A6
+            4E800021 57DBE13F
+            41820008 3B7EFFF0
+            7C1BF040 4080004C
+            576316BA 7C1F182E
+            1D6003E9 38000078
+            7D6B0396 380003E8
+            7CAB0396 1C0503E8
+            7CC05850 387903B0
+            389903C0 39990238
+            7D8803A6 4E800021
+            7FBDD214 3B7B0001
+            B3B903B2 4BFFFFB4
+            B39903B2 BB210008
+            38210030 00000000
+        </source>
+        <source version="GMSE01">
+            C22A63CC 00000003
+            3C60817F 3BA00004
+            93A303CC 3BA00000
+            B3A303CA 00000000
+            C21441C4 0000001B
+            3821FFD0 BF210008
+            3F20817F AB9903B2
+            3BF903D0 A3D903CA
+            7F9DE378 835903B4
+            80D900BC 28060000
+            41A2002C 809900B8
+            80B903CC 7C042800
+            40A1001C 7C052050
+            57CC16BA 7C1F612E
+            909903CC 3BDE0001
+            B3D903CA 3879039C
+            389903AC 3D808014
+            398C0390 7D8803A6
+            4E800021 57DBE13F
+            41820008 3B7EFFF0
+            7C1BF040 4080004C
+            576316BA 7C1F182E
+            1D6003E9 38000078
+            7D6B0396 380003E8
+            7CAB0396 1C0503E8
+            7CC05850 387903B0
+            389903C0 39990238
+            7D8803A6 4E800021
+            7FBDD214 3B7B0001
+            B3B903B2 4BFFFFB4
+            B39903B2 BB210008
+            38210030 00000000
+        </source>
+    </code>
 </codes>
diff --git a/changelog.md b/changelog.md
index c535885..efc9433 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,8 @@
 # Changelog
 ## Jan 31, 2023
+### Created 'Quarterframe Section Timer'
+Calculate and display section times whenever Quarterframe Timer freezes
+
 ### Updated 'Pattern Selector'
 - Rewrote with C2 + separated config 06
 - Remove label option
diff --git a/site/.vuepress/components/CodeInfo.vue b/site/.vuepress/components/CodeInfo.vue
index 756d505..00c5124 100644
--- a/site/.vuepress/components/CodeInfo.vue
+++ b/site/.vuepress/components/CodeInfo.vue
@@ -38,10 +38,9 @@ export default {
     showPreview() {
       return [
         'PatternSelector',
-        'PASDisplay',
-        'SpeedDisplay',
         'CustomizedDisplay',
         'qft',
+        'qfst',
       ].includes(this.code.id); // TODO
     },
   },
diff --git a/site/.vuepress/components/Generator.vue b/site/.vuepress/components/Generator.vue
index 29d5553..b695bea 100644
--- a/site/.vuepress/components/Generator.vue
+++ b/site/.vuepress/components/Generator.vue
@@ -113,6 +113,7 @@ import { translate } from '../i18n/localeHelper';
 
 // Code Configs
 import {getConfig as getConfigQFT} from './codes/qft/codegen';
+import {getConfig as getConfigQFST} from './codes/qfst/codegen';
 import {getConfig as getConfigCD} from './codes/CustomizedDisplay/codegen';
 import {getConfig as getConfigPS} from './codes/PatternSelector/codegen';
 
@@ -163,6 +164,7 @@ export default {
       // update config for preview
       this.codeConfigs = {
         qft: getConfigQFT(),
+        qfst: getConfigQFST(),
         PatternSelector: getConfigPS(),
         CustomizedDisplay: getConfigCD(e),
       };
diff --git a/site/.vuepress/components/Preview.vue b/site/.vuepress/components/Preview.vue
index 282f5e5..ecb800f 100644
--- a/site/.vuepress/components/Preview.vue
+++ b/site/.vuepress/components/Preview.vue
@@ -1,10 +1,11 @@
 <template>
   <div class="preview-root">
     <div class="preview-ctn">
-      <PreviewString :config="config.qft" :version="_version" />
       <PreviewString v-for="mdp,i in (config.CustomizedDisplay || [])"
         :key="'mdp'+i" :config="mdp" :version="_version" />
       <PreviewString :config="config.PatternSelector" :version="_version" />
+      <PreviewString :config="config.qft" :version="_version" />
+      <PreviewString :config="config.qfst" :version="_version" />
     </div>
   </div>
 </template>
diff --git a/site/.vuepress/components/codes/codegen.js b/site/.vuepress/components/codes/codegen.js
index f98a2e0..6f7fef6 100644
--- a/site/.vuepress/components/codes/codegen.js
+++ b/site/.vuepress/components/codes/codegen.js
@@ -1,11 +1,13 @@
 import InstantRestart from './InstantRestart/codegen.js';
 import qft from './qft/codegen.js';
+import qfst from './qfst/codegen.js';
 import CustomizedDisplay from './CustomizedDisplay/codegen.js';
 import PatternSelector from './PatternSelector/codegen.js';
 
 export default {
   InstantRestart,
   qft,
+  qfst,
   CustomizedDisplay,
   PatternSelector,
 };
diff --git a/site/.vuepress/components/codes/labels.json b/site/.vuepress/components/codes/labels.json
index 458b625..d76356d 100644
--- a/site/.vuepress/components/codes/labels.json
+++ b/site/.vuepress/components/codes/labels.json
@@ -1,5 +1,8 @@
 {
   "ja-JP": {
+    "h3": {
+      "appearance": "見た目"
+    },
     "location": "位置：",
     "fontSize": "文字サイズ：",
     "fgColor": "文字色：",
@@ -15,6 +18,9 @@
     "bottom": "下"
   },
   "en-US": {
+    "h3": {
+      "appearance": "Appearance"
+    },
     "location": "Location: ",
     "fontSize": "Font size: ",
     "fgColor": "Font color: ",
diff --git a/site/.vuepress/components/codes/qfst/codegen.js b/site/.vuepress/components/codes/qfst/codegen.js
new file mode 100644
index 0000000..4526a83
--- /dev/null
+++ b/site/.vuepress/components/codes/qfst/codegen.js
@@ -0,0 +1,66 @@
+import { parseJSON } from '../codegen.js';
+import { insts2hex, getDrawTextOpt, getFillRectParams } from '../asm';
+import { measureText } from '../text.js';
+export const lskey = 'config/qfst';
+
+export const defaultConfig = {
+  x: 533,
+  y: 150,
+  fontSize: 13,
+  fgRGB: 0xffffff,
+  fgA: 0xff,
+  fgRGB2: null,
+  fgA2: null,
+  bgRGB: 0x000000,
+  bgA: 0x40,
+  bgLeft: 4,
+  bgRight: 3,
+  bgTop: 4,
+  bgBot: 2,
+};
+
+export const getPreviewText = () => ` 0.426
+ 0.427
+ 0.428
+ 1.515
+ 3.117
+39.000
+ 9.999
+11.111
+22.222
+33.333
+44.444
+55.555
+66.666
+77.777
+88.888
+99.999`;
+
+/** @returns {typeof defaultConfig} */
+export function getConfig() {
+  const config =
+    (typeof localStorage !== 'undefined' && parseJSON(localStorage.getItem(lskey))) || {};
+  return {
+    ...defaultConfig,
+    ...config,
+    text: getPreviewText(),
+  };
+}
+
+/**
+ * @param {keyof typeof import('../addrs.js').ctxSpOff} version
+ * @param {string=} baseCode
+ */
+export default function codegen(version, baseCode) {
+  if (!baseCode) return '';
+
+  const config = getConfig();
+
+  let code = baseCode;
+  code += '077F039C 0000002C';
+  code += insts2hex(getFillRectParams(config, measureText(getPreviewText(), version)));
+  code += insts2hex(getDrawTextOpt(config));
+  code += '2532642E 25303364 00000000'; // fmt = "%2d.%03d"
+
+  return code.replace(/\s/g, '');
+}
diff --git a/site/.vuepress/components/codes/qfst/config.vue b/site/.vuepress/components/codes/qfst/config.vue
new file mode 100644
index 0000000..56d3d65
--- /dev/null
+++ b/site/.vuepress/components/codes/qfst/config.vue
@@ -0,0 +1,69 @@
+<template>
+  <div>
+    <section class="appearance">
+      <h3>{{ l('h3.appearance') }}</h3>
+      <TextConfig v-model="textConfig" />
+    </section>
+  </div>
+</template>
+
+<script>
+import { defaultConfig, lskey, getConfig, getPreviewText } from './codegen.js';
+import { makeUpdateConfig, makeGetLabel } from '../utils';
+import labels from '../labels.json';
+import TextConfig from '../TextConfig.vue';
+
+const updateConfig = makeUpdateConfig(lskey, defaultConfig, getPreviewText);
+export default {
+  components: {
+    TextConfig,
+  },
+  props: {
+    version: { type: String },
+  },
+  methods: {
+    updateConfig,
+  },
+  data() {
+    const config = getConfig();
+    return {...config};
+  },
+  computed: {
+    l() {
+      return makeGetLabel(labels, this.$lang);
+    },
+    textConfig: {
+      get() {
+        return this;
+      },
+      set(value) {
+        Object.assign(this, value);
+        this.updateConfig();
+      },
+    },
+  },
+};
+</script>
+
+<style scoped>
+input[type='number'],
+td.right {
+  text-align: right;
+}
+input[type='number'] {
+  width: 3em;
+  margin: 0 2px;
+}
+.appearance > div {
+  padding: 0 0 4px;
+}
+
+input[type='number'] {
+  -moz-appearance: textfield;
+}
+input[type='number']::-webkit-inner-spin-button,
+input[type='number']::-webkit-outer-spin-button {
+  -webkit-appearance: none;
+  margin: 0;
+}
+</style>
diff --git a/site/.vuepress/components/codes/qft/config.vue b/site/.vuepress/components/codes/qft/config.vue
index b1017c0..1c224bf 100644
--- a/site/.vuepress/components/codes/qft/config.vue
+++ b/site/.vuepress/components/codes/qft/config.vue
@@ -26,7 +26,7 @@
 
 <script>
 import { defaultConfig, lskey, getConfig, getPreviewText, codes, statusKeys } from './codegen.js';
-import { makeUpdateConfig, rgbI2S, rgbS2I, rgbaI2S } from '../utils';
+import { makeUpdateConfig } from '../utils';
 import labels from './labels.json';
 import TextConfig from '../TextConfig.vue';
 
@@ -43,19 +43,7 @@ export default {
       this.freeze[key] = $event.target.checked;
       this.updateConfig();
     },
-    toggleGradient($event) {
-      if ($event.target.checked) {
-        this.fgRGB2 = this.fgRGB;
-        this.fgA2 = this.fgA;
-      } else {
-        this.fgRGB2 = null;
-        this.fgA2 = null;
-      }
-    },
     updateConfig,
-    rgbI2S,
-    rgbS2I,
-    rgbaI2S,
   },
   data() {
     const config = getConfig();
@@ -83,7 +71,6 @@ export default {
     },
   },
   watch: {
-    width: updateConfig,
     freezeDuration: updateConfig,
   },
 };
diff --git a/site/.vuepress/components/codes/ui.js b/site/.vuepress/components/codes/ui.js
index e9e7419..d2a3676 100644
--- a/site/.vuepress/components/codes/ui.js
+++ b/site/.vuepress/components/codes/ui.js
@@ -2,10 +2,12 @@ import InstantRestart from './InstantRestart/config.vue';
 import CustomizedDisplay from './CustomizedDisplay/config.vue';
 import PatternSelector from './PatternSelector/config.vue';
 import qft from './qft/config.vue';
+import qfst from './qfst/config.vue';
 
 export default {
   InstantRestart,
   CustomizedDisplay,
   PatternSelector,
   qft,
+  qfst,
 };