Chg: 全てのスケジュールが正確に動作するように

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 {