diff --git a/__tests__/integration/snapshots/static/aaplIntervalDateEncodeX.png b/__tests__/integration/snapshots/static/aaplIntervalDateEncodeX.png
index 539df3e61d..cbdef8d719 100644
Binary files a/__tests__/integration/snapshots/static/aaplIntervalDateEncodeX.png and b/__tests__/integration/snapshots/static/aaplIntervalDateEncodeX.png differ
diff --git a/__tests__/integration/snapshots/tooltip/aapl-line-date-default-format/step0.html b/__tests__/integration/snapshots/tooltip/aapl-line-date-default-format/step0.html
new file mode 100644
index 0000000000..19ce98a36c
--- /dev/null
+++ b/__tests__/integration/snapshots/tooltip/aapl-line-date-default-format/step0.html
@@ -0,0 +1,46 @@
+<div
+  xmlns="http://www.w3.org/1999/xhtml"
+  class="g2-tooltip"
+  style="pointer-events: none; position: absolute; visibility: visible; z-index: 8; transition: visibility 0.2s cubic-bezier(0.23, 1, 0.32, 1), left 0.4s cubic-bezier(0.23, 1, 0.32, 1), top 0.4s cubic-bezier(0.23, 1, 0.32, 1); background-color: rgba(255, 255, 255, 0.96); box-shadow: 0 6px 12px 0 rgba(0, 0, 0, 0.12); border-radius: 4px; color: rgba(0, 0, 0, 0.65); font-size: 12px; line-height: 20px; padding: 12px; min-width: 120px; max-width: 360px; font-family: Roboto-Regular; left: 210px; top: 310px;"
+>
+  <div
+    class="g2-tooltip-title"
+    style="color: rgba(0, 0, 0, 0.45); overflow: hidden; white-space: nowrap; text-overflow: ellipsis;"
+  >
+    2008-06-22 08:00:00
+  </div>
+  <ul
+    class="g2-tooltip-list"
+    style="margin: 0px; list-style-type: none; padding: 0px;"
+  >
+    <li
+      class="g2-tooltip-list-item"
+      data-index="0"
+      style="list-style-type: none; display: flex; line-height: 2em; align-items: center; justify-content: space-between; white-space: nowrap;"
+    >
+      <span
+        class="g2-tooltip-list-item-name"
+        style="display: flex; align-items: center; max-width: 216px;"
+      >
+        <span
+          class="g2-tooltip-list-item-marker"
+          style="background: rgb(23, 131, 255); width: 8px; height: 8px; border-radius: 50%; display: inline-block; margin-right: 4px;"
+        />
+        <span
+          class="g2-tooltip-list-item-name-label"
+          title="close"
+          style="flex: 1; overflow: hidden; white-space: nowrap; text-overflow: ellipsis;"
+        >
+          close
+        </span>
+      </span>
+      <span
+        class="g2-tooltip-list-item-value"
+        title="173.16"
+        style="display: inline-block; float: right; flex: 1; text-align: right; min-width: 28px; margin-left: 30px; color: rgba(0, 0, 0, 0.85); overflow: hidden; white-space: nowrap; text-overflow: ellipsis;"
+      >
+        173.16
+      </span>
+    </li>
+  </ul>
+</div>
\ No newline at end of file
diff --git a/__tests__/integration/snapshots/tooltip/indices-line-custom/step0.html b/__tests__/integration/snapshots/tooltip/indices-line-custom/step0.html
index 467b75e873..9facf5b7eb 100644
--- a/__tests__/integration/snapshots/tooltip/indices-line-custom/step0.html
+++ b/__tests__/integration/snapshots/tooltip/indices-line-custom/step0.html
@@ -5,7 +5,7 @@
 >
   <div>
     <dv>
-      <h2>Tue, 22 Apr 2014 00:00:00 GMT</h2>
+      <h2>2014-04-22 08:00:00</h2>
       <span>(200, 300)</span>
       <ul style="padding-left: 1em">
         <li style="color: #00C9C9">AMZN: 1.2450190713009308</li>
diff --git a/__tests__/integration/snapshots/tooltip/indices-line-custom/step1.html b/__tests__/integration/snapshots/tooltip/indices-line-custom/step1.html
index 320c9bd39d..61ac739219 100644
--- a/__tests__/integration/snapshots/tooltip/indices-line-custom/step1.html
+++ b/__tests__/integration/snapshots/tooltip/indices-line-custom/step1.html
@@ -5,7 +5,7 @@
 >
   <div>
     <dv>
-      <h2>Fri, 02 Jan 2015 00:00:00 GMT</h2>
+      <h2>2015-01-02 08:00:00</h2>
       <span>(300, 300)</span>
       <ul style="padding-left: 1em">
         <li style="color: #00C9C9">AMZN: 1.1663830378290787</li>
diff --git a/__tests__/integration/snapshots/tooltip/indices-line/step0.html b/__tests__/integration/snapshots/tooltip/indices-line/step0.html
index f6b48e314d..116b730483 100644
--- a/__tests__/integration/snapshots/tooltip/indices-line/step0.html
+++ b/__tests__/integration/snapshots/tooltip/indices-line/step0.html
@@ -7,7 +7,7 @@
     class="g2-tooltip-title"
     style="color: rgba(0, 0, 0, 0.45); overflow: hidden; white-space: nowrap; text-overflow: ellipsis;"
   >
-    Tue, 22 Apr 2014 00:00:00 GMT
+    2014-04-22 08:00:00
   </div>
   <ul
     class="g2-tooltip-list"
diff --git a/__tests__/plots/static/aapl-interval-date-encode-x.ts b/__tests__/plots/static/aapl-interval-date-encode-x.ts
index a4a5ed2bc9..418a513ead 100644
--- a/__tests__/plots/static/aapl-interval-date-encode-x.ts
+++ b/__tests__/plots/static/aapl-interval-date-encode-x.ts
@@ -15,14 +15,3 @@ export function aaplIntervalDateEncodeX(): G2Spec {
     },
   };
 }
-
-let toString;
-
-aaplIntervalDateEncodeX.before = () => {
-  toString = Date.prototype.toString;
-  Date.prototype.toString = Date.prototype.toUTCString;
-};
-
-aaplIntervalDateEncodeX.after = () => {
-  Date.prototype.toString = toString;
-};
diff --git a/__tests__/plots/static/aapl-line-missing-data-trial.ts b/__tests__/plots/static/aapl-line-missing-data-trial.ts
index b4e6708eda..afa2ecea12 100644
--- a/__tests__/plots/static/aapl-line-missing-data-trial.ts
+++ b/__tests__/plots/static/aapl-line-missing-data-trial.ts
@@ -26,14 +26,3 @@ export function aaplLineMissingDataTrial(): G2Spec {
     style: { shape: 'trail' },
   };
 }
-
-// Make the local ci and online ci covert Date object to consistent string.
-let toString;
-aaplLineMissingDataTrial.before = () => {
-  toString = Date.prototype.toString;
-  Date.prototype.toString = Date.prototype.toUTCString;
-};
-
-aaplLineMissingDataTrial.after = () => {
-  Date.prototype.toString = toString;
-};
diff --git a/__tests__/plots/static/mock-line-small-interval.ts b/__tests__/plots/static/mock-line-small-interval.ts
index dd74808b8d..0c521cdd03 100644
--- a/__tests__/plots/static/mock-line-small-interval.ts
+++ b/__tests__/plots/static/mock-line-small-interval.ts
@@ -35,14 +35,3 @@ export function mockLineSmallInterval(): G2Spec {
     coordinate: { transform: [{ type: 'transpose' }] },
   };
 }
-
-let toString;
-
-mockLineSmallInterval.before = () => {
-  toString = Date.prototype.toString;
-  Date.prototype.toString = Date.prototype.toUTCString;
-};
-
-mockLineSmallInterval.after = () => {
-  Date.prototype.toString = toString;
-};
diff --git a/__tests__/plots/tooltip/indices-line-custom.ts b/__tests__/plots/tooltip/indices-line-custom.ts
index 07a6b424f2..4600870e00 100644
--- a/__tests__/plots/tooltip/indices-line-custom.ts
+++ b/__tests__/plots/tooltip/indices-line-custom.ts
@@ -14,9 +14,7 @@ export async function indicesLineCustom(): Promise<G2Spec> {
       {
         type: 'line',
         data,
-        axis: {
-          y: { labelAutoRotate: false },
-        },
+        axis: { y: { labelAutoRotate: false } },
         transform: [{ type: 'normalizeY', basis: 'first', groupBy: 'color' }],
         legend: false,
         encode: {
@@ -35,14 +33,3 @@ export async function indicesLineCustom(): Promise<G2Spec> {
 }
 
 indicesLineCustom.steps = seriesTooltipSteps([200, 300], [300, 300]);
-
-// Make the local ci and online ci covert Date object to consistent string.
-let toString;
-indicesLineCustom.before = () => {
-  toString = Date.prototype.toString;
-  Date.prototype.toString = Date.prototype.toUTCString;
-};
-
-indicesLineCustom.after = () => {
-  Date.prototype.toString = toString;
-};
diff --git a/__tests__/plots/tooltip/indices-line-formatter.ts b/__tests__/plots/tooltip/indices-line-formatter.ts
index dc303b4d0b..ae6753ad84 100644
--- a/__tests__/plots/tooltip/indices-line-formatter.ts
+++ b/__tests__/plots/tooltip/indices-line-formatter.ts
@@ -23,14 +23,3 @@ export async function indicesLineFormatter(): Promise<G2Spec> {
 }
 
 indicesLineFormatter.steps = seriesTooltipSteps([200, 300]);
-
-// Make the local ci and online ci covert Date object to consistent string.
-let toString;
-indicesLineFormatter.before = () => {
-  toString = Date.prototype.toString;
-  Date.prototype.toString = Date.prototype.toUTCString;
-};
-
-indicesLineFormatter.after = () => {
-  Date.prototype.toString = toString;
-};
diff --git a/__tests__/plots/tooltip/indices-line.ts b/__tests__/plots/tooltip/indices-line.ts
index db8b79f69b..85a21e8aab 100644
--- a/__tests__/plots/tooltip/indices-line.ts
+++ b/__tests__/plots/tooltip/indices-line.ts
@@ -31,14 +31,3 @@ export async function indicesLine(): Promise<G2Spec> {
 }
 
 indicesLine.steps = seriesTooltipSteps([200, 300]);
-
-// Make the local ci and online ci covert Date object to consistent string.
-let toString;
-indicesLine.before = () => {
-  toString = Date.prototype.toString;
-  Date.prototype.toString = Date.prototype.toUTCString;
-};
-
-indicesLine.after = () => {
-  Date.prototype.toString = toString;
-};
diff --git a/package.json b/package.json
index 0ae915ec46..8282c13ffb 100644
--- a/package.json
+++ b/package.json
@@ -23,16 +23,16 @@
     "dist"
   ],
   "scripts": {
-    "dev": "vite",
+    "dev": "TZ=Asia/Shanghai vite",
     "dev:link": "cross-env LINK=1 vite",
     "clean": "rimraf lib esm dist",
     "lint-staged": "lint-staged",
     "size": "limit-size",
     "lint": "eslint ./src ./__tests__ && prettier ./src ./__tests__ --check ",
     "fix": "eslint ./src ./__tests__ --fix && prettier ./src ./__tests__ --write ",
-    "test": "node --expose-gc --max-old-space-size=4096 --unhandled-rejections=strict node_modules/jest/bin/jest __tests__/ --coverage -i  --logHeapUsage",
-    "test:unit": "node --expose-gc --max-old-space-size=4096 --unhandled-rejections=strict node_modules/jest/bin/jest __tests__/unit/ --coverage -i  --logHeapUsage",
-    "test:integration": "node --expose-gc --max-old-space-size=4096 --unhandled-rejections=strict node_modules/jest/bin/jest __tests__/integration/ --coverage -i  --logHeapUsage",
+    "test": "TZ=Asia/Shanghai node --expose-gc --max-old-space-size=4096 --unhandled-rejections=strict node_modules/jest/bin/jest __tests__/ --coverage -i  --logHeapUsage",
+    "test:unit": "TZ=Asia/Shanghai node --expose-gc --max-old-space-size=4096 --unhandled-rejections=strict node_modules/jest/bin/jest __tests__/unit/ --coverage -i  --logHeapUsage",
+    "test:integration": "TZ=Asia/Shanghai node --expose-gc --max-old-space-size=4096 --unhandled-rejections=strict node_modules/jest/bin/jest __tests__/integration/ --coverage -i  --logHeapUsage",
     "preview": "vite preview",
     "build:umd": "rimraf ./dist && node --expose-gc --max-old-space-size=4096 node_modules/rollup/dist/bin/rollup -c && npm run size",
     "build:cjs": "rimraf ./lib && tsc --module commonjs --outDir lib",