diff --git a/README.md b/README.md
index dbb3f74..af5fb62 100644
--- a/README.md
+++ b/README.md
@@ -3,18 +3,19 @@
 uwuzu v1.6.7以上で利用可能です。
 
 ## 機能
-- 時報
+- 時報  
   毎時0分に「h:00になりました。」と投稿します。
-- 天気予報
-  [天気予報 API（livedoor 天気互換）](https://weather.tsukumijima.net/)を利用して、毎日7:00に天気予報を投稿します。
-- 地震情報
+- 天気予報  
+  [天気予報 API（livedoor 天気互換）](https://weather.tsukumijima.net/)を利用して、毎日7:00及び18:00に天気予報を投稿します。
+  18:00は明日の天気予報を投稿します。
+- 地震情報  
   [P2P地震情報](https://www.p2pquake.net/)のWebSocket APIを利用して、以下の情報を受信した際に投稿します。
   - 地震発生
   - 緊急地震速報（警報）
   - 津波予報
-- 新年迎春
+- 新年迎春  
   毎年1/1 0:00に投稿します。
-- デバッグモード
+- デバッグモード  
   設定で有効化することで、以下の機能が利用できます。  
   開発以外では使用しないでください。
   - NODE_TLS_REJECT_UNAUTHORIZED=1  
diff --git a/package.json b/package.json
index dfccf3e..ce11172 100644
--- a/package.json
+++ b/package.json
@@ -17,6 +17,7 @@
     "@types/node": "^25.5.2",
     "@types/ws": "^8.18.1",
     "better-uwuzu-sdk": "git+https://gitea.last2014.com/last2014/better-uwuzu-sdk.git#1.1.7",
+    "cron-parser": "^5.5.0",
     "date-fns": "^4.1.0",
     "fs": "0.0.1-security",
     "i18next": "^26.0.3",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 97ef052..903e42a 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -17,6 +17,9 @@ importers:
       better-uwuzu-sdk:
         specifier: git+https://gitea.last2014.com/last2014/better-uwuzu-sdk.git#1.1.7
         version: git+https://gitea.last2014.com/last2014/better-uwuzu-sdk.git#8017146b1a2d6264d051b54afccdd46571b5fd00
+      cron-parser:
+        specifier: ^5.5.0
+        version: 5.5.0
       date-fns:
         specifier: ^4.1.0
         version: 4.1.0
@@ -298,6 +301,10 @@ packages:
     resolution: {integrity: sha512-KRs7WVDKg86PWiuAqhDrAQnTXZKraVcCc6vFdL14qrZ/DcWwuRo7VoiYXalXO7S5GKpqYiVEwCbgFDfxNHKJBQ==}
     engines: {node: ^12.20.0 || >=14}
 
+  cron-parser@5.5.0:
+    resolution: {integrity: sha512-oML4lKUXxizYswqmxuOCpgFS8BNUJpIu6k/2HVHyaL8Ynnf3wdf9tkns0yRdJLSIjkJ+b0DXHMZEHGpMwjnPww==}
+    engines: {node: '>=18'}
+
   date-fns@4.1.0:
     resolution: {integrity: sha512-Ukq0owbQXxa/U3EGtsdVBkR1w7KOQ5gIBqdH2hkvknzZPYvBxb/aa6E8L7tmjFtkwZBu3UXBbjIgPo/Ez4xaNg==}
 
@@ -475,6 +482,10 @@ packages:
     resolution: {integrity: sha512-p3EcsicXjit7SaskXHs1hA91QxgTw46Fv6EFKKGS5DRFLD8yKnohjF3hxoju94b/OcMZoQukzpPpBE9uLVKzgQ==}
     engines: {node: '>= 0.4'}
 
+  luxon@3.7.2:
+    resolution: {integrity: sha512-vtEhXh/gNjI9Yg1u4jX/0YVPMvxzHuGgCm6tC5kZyb08yjGWGnqAjGJvcXbqQR2P3MyMEFnRbpcdFS6PBcLqew==}
+    engines: {node: '>=12'}
+
   math-intrinsics@1.1.0:
     resolution: {integrity: sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g==}
     engines: {node: '>= 0.4'}
@@ -882,6 +893,10 @@ snapshots:
 
   commander@9.5.0: {}
 
+  cron-parser@5.5.0:
+    dependencies:
+      luxon: 3.7.2
+
   date-fns@4.1.0: {}
 
   decompress-response@6.0.0:
@@ -1058,6 +1073,8 @@ snapshots:
     dependencies:
       which-typed-array: 1.1.20
 
+  luxon@3.7.2: {}
+
   math-intrinsics@1.1.0: {}
 
   merge2@1.4.1: {}
diff --git a/src/feature/command/index.ts b/src/feature/command/index.ts
index eb7705c..e319177 100644
--- a/src/feature/command/index.ts
+++ b/src/feature/command/index.ts
@@ -9,8 +9,13 @@ import unfollowCommand from "@/feature/command/unfollow";
 import miqCommand from "@/feature/command/miq";
 import initI18n from "@/lib/i18n";
 import config from "@/lib/config";
+import CronExpressionParser from "cron-parser";
 
 await initI18n();
+
+const next = BigInt(CronExpressionParser.parse(`*/${config.command.interval} * * * *`).next().getTime() * 1_000_000);
+while (process.hrtime.bigint() > next) {}
+
 console.log("コマンドの処理を行います");
 
 try {
diff --git a/src/feature/hnyNotice.ts b/src/feature/hnyNotice.ts
index 8868313..0d74eba 100644
--- a/src/feature/hnyNotice.ts
+++ b/src/feature/hnyNotice.ts
@@ -1,25 +1,26 @@
 import { createUeuse } from "@/lib/client";
 import initI18n from "@/lib/i18n";
+import CronExpressionParser from "cron-parser";
 import { format } from "date-fns";
 import i18next from "i18next";
-import { parentPort } from "node:worker_threads";
 
 await initI18n();
 
-parentPort?.on("message", async () => {
-  console.log("新年迎春の投稿を行います");
+const next = BigInt(CronExpressionParser.parse("0 0 1 1 *").next().getTime() * 1_000_000);
+while (process.hrtime.bigint() > next) {}
 
-  try {
-    await createUeuse({
-      text: i18next.t("hnyNotice", { year: String(new Date().getFullYear()) }),
-    }, "新年迎春");
+console.log("新年迎春の投稿を行います");
 
-    console.log("新年迎春投稿時刻:", format(new Date(), "yyyy/M/d H:mm:ss:SSS"));
-    process.exit(0);
-  } catch (err: any) {
-    console.error("message" in err
-      ? err.message
-      : err);
-    process.exit(1);
-  }
-});
\ No newline at end of file
+try {
+  await createUeuse({
+    text: i18next.t("hnyNotice", { year: String(new Date().getFullYear()) }),
+  }, "新年迎春");
+
+  console.log("新年迎春投稿時刻:", format(new Date(), "yyyy/M/d H:mm:ss:SSS"));
+  process.exit(0);
+} catch (err: any) {
+  console.error("message" in err
+    ? err.message
+    : err);
+  process.exit(1);
+}
\ No newline at end of file
diff --git a/src/feature/timeNotice.ts b/src/feature/timeNotice.ts
index 4ad0bfe..1d76c9b 100644
--- a/src/feature/timeNotice.ts
+++ b/src/feature/timeNotice.ts
@@ -1,9 +1,14 @@
 import { createUeuse } from "@/lib/client";
 import initI18n from "@/lib/i18n";
+import CronExpressionParser from "cron-parser";
 import { format } from "date-fns";
 import i18next from "i18next";
 
 await initI18n();
+
+const next = BigInt(CronExpressionParser.parse("0 * * * *").next().getTime() * 1_000_000);
+while (process.hrtime.bigint() > next) {}
+
 console.log("時報の投稿を行います");
 
 try {
diff --git a/src/feature/weatherNotice.ts b/src/feature/weatherNotice.ts
index d64eec1..e9c18b3 100644
--- a/src/feature/weatherNotice.ts
+++ b/src/feature/weatherNotice.ts
@@ -2,6 +2,7 @@ import client from "@/lib/client";
 import config from "@/lib/config";
 import initI18n from "@/lib/i18n";
 import Memory from "@/lib/memory";
+import CronExpressionParser from "cron-parser";
 import i18next from "i18next";
 import { readFileSync } from "node:fs";
 import { EOL } from "node:os";
@@ -63,6 +64,13 @@ if (
   workerData.startsWith("scheduledWeatherNotice")
 ) {
   await initI18n();
+
+  const cronStr = workerData.endsWith("Tomorrow")
+    ? "0 18 * * *"
+    : "0 7 * * *"
+  const next = BigInt(CronExpressionParser.parse(cronStr).next().getTime() * 1_000_000);
+  while (process.hrtime.bigint() > next) {}
+
   console.log("天気予報の投稿を行います");
 
   try {
diff --git a/src/index.ts b/src/index.ts
index 4d0846d..a2d3bb0 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -31,34 +31,34 @@ try {
 }
 
 try {
-  schedule("0 * * * *", async () => {
+  schedule("56 59 * * * *", async () => {
     new Worker(`${import.meta.dirname}/feature/timeNotice.js`);
   });
 
-  schedule("0 7 * * *", async () => {
+  schedule("56 59 6 * * *", async () => {
     new Worker(`${import.meta.dirname}/feature/weatherNotice.js`, {
       workerData: "scheduledWeatherNotice",
     });
   });
 
-  schedule("0 18 * * *", async () => {
+  schedule("56 59 17 * * *", async () => {
     new Worker(`${import.meta.dirname}/feature/weatherNotice.js`, {
       workerData: "scheduledWeatherNoticeTomorrow",
     });
   });
 
-  schedule(`*/${config.command.interval} * * * *`, async () => {
+  const interval = config.command.interval;
+  const targetMinutes = [];
+  for (let i = interval - 1; i < 60; i += interval) {
+    targetMinutes.push(i);
+  }
+  const minutesStr = targetMinutes.join(",");
+  schedule(`56 ${minutesStr} * * * *`, async () => {
     new Worker(`${import.meta.dirname}/feature/command/index.js`);
   });
-
-  let hnyWorker: Worker | undefined = undefined;
-
-  schedule("57 59 23 31 12 *", () => {
-    hnyWorker = new Worker(`${import.meta.dirname}/feature/hnyNotice.js`);
-  });
-
-  schedule("0 0 0 1 1 *", () => {
-    hnyWorker?.postMessage("");
+  
+  schedule("56 59 23 31 12 *", () => {
+    new Worker(`${import.meta.dirname}/feature/hnyNotice.js`);
   });
 } catch (err: any) {
   console.error("message" in err