Run at 8:30 AM Monday through Friday | CronBase

#!/usr/bin/env bash
# To install this cron job, run: (crontab -l ; echo "30 8 * * 1-5 /usr/local/bin/morning-sync.sh") | crontab -
set -euo pipefail

readonly LOCKFILE="/var/tmp/morning_sync.lock"

# Acquire an exclusive file lock to prevent overlapping runs
exec 9>"$LOCKFILE"
if ! flock -n 9; then
    echo "Error: Another instance of the morning sync is already running." >&2
    exit 1
fi

echo "Starting daily weekday synchronization at $(date)"
# Place your actual production business logic here
# Example: curl -f -X POST https://api.internal/v1/sync

echo "Synchronization completed successfully."
exit 0

// Requires: npm install node-cron
const cron = require('node-cron');
const { exec } = require('child_process');

console.log('Registering weekday morning cron scheduler...');

// Schedule to run at 8:30 AM, Monday through Friday
cron.schedule('30 8 * * 1-5', () => {
    const timestamp = new Date().toISOString();
    console.log(`[${timestamp}] Initiating weekday morning database cache warmup...`);
    
    try {
        // Simulate or execute application business logic
        warmupCache();
    } catch (error) {
        console.error(`[${timestamp}] Critical error during cache warmup:`, error);
    }
}, {
    scheduled: true,
    timezone: "America/New_York"
});

function warmupCache() {
    // Implementation of production cache warming
    console.log('Cache warmup completed successfully.');
}

# Requires: pip install apscheduler
import logging
import sys
from datetime import datetime
from apscheduler.schedulers.blocking import BlockingScheduler
from apscheduler.triggers.cron import CronTrigger

logging.basicConfig(
    level=logging.INFO,
    format='%(asctime)s [%(levelname)s] %(message)s',
    handlers=[logging.StreamHandler(sys.stdout)]
)
logger = logging.getLogger(__name__)

def run_morning_pipeline():
    logger.info("Starting scheduled weekday morning pipeline...")
    try:
        # Place your production data processing steps here
        logger.info("Pipeline executed successfully.")
    except Exception as e:
        logger.error(f"Pipeline execution failed: {str(e)}")

if __name__ == "__main__":
    scheduler = BlockingScheduler()
    # 30 8 * * 1-5 mapping to Monday-Friday
    trigger = CronTrigger(minute=30, hour=8, day_of_week='mon-fri', timezone='America/Chicago')
    scheduler.add_job(run_morning_pipeline, trigger=trigger, id='weekday_morning_pipeline')
    
    logger.info("Scheduler started. Awaiting execution at 8:30 AM Central Time on weekdays...")
    try:
        scheduler.start()
    except (KeyboardInterrupt, SystemExit):
        logger.info("Scheduler stopped cleanly.")
        sys.exit(0)

package main

import (
	"log"
	"os"
	"os/signal"
	"syscall"
	"time"

	"github.com/robfig/cron/v3"
)

func main() {
	// Load the desired runtime timezone
	loc, err := time.LoadLocation("America/New_York")
	if err != nil {
		log.Fatalf("Failed to load timezone: %v", err)
	}

	// Initialize cron scheduler with timezone context
	c := cron.New(cron.WithLocation(loc))

	// Register the 30 8 * * 1-5 schedule
	_, err = c.AddFunc("30 8 * * 1-5", func() {
		log.Printf("Executing weekday morning job at %s", time.Now().In(loc).Format(time.RFC3339))
		if err := performJob(); err != nil {
			log.Printf("Job failed: %v", err)
		}
	})
	if err != nil {
		log.Fatalf("Error scheduling job: %v", err)
	}

	c.Start()
	log.Println("Scheduler running. Press Ctrl+C to terminate.")

	sigChan := make(chan os.Signal, 1)
	signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)
	<-sigChan

	log.Println("Stopping scheduler gracefully...")
	c.Stop()
}

func performJob() error {
	// Production logic here
	return nil
}

package com.example.scheduler;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

@Component
public class WeekdayMorningScheduler {

    private static final Logger logger = LoggerFactory.getLogger(WeekdayMorningScheduler.class);

    // Spring Cron format: second, minute, hour, day of month, month, day of week
    // "0 30 8 * * MON-FRI" runs at 8:30:00 AM on weekdays
    @Scheduled(cron = "0 30 8 * * MON-FRI", zone = "America/New_York")
    public void executeWeekdayMorningTask() {
        logger.info("Triggered weekday morning task...");
        try {
            performBusinessLogic();
            logger.info("Task executed successfully.");
        } catch (Exception e) {
            logger.error("Error during weekday morning task execution:", e);
        }
    }

    private void performBusinessLogic() throws Exception {
        // Implement production task logic here
    }
}

apiVersion: batch/v1
kind: CronJob
metadata:
  name: weekday-morning-reporter
  namespace: production
spec:
  # Run at 8:30 AM, Monday through Friday
  schedule: "30 8 * * 1-5"
  timeZone: "America/New_York" # Supported in Kubernetes 1.27+
  concurrencyPolicy: Forbid
  successfulJobsHistoryLimit: 3
  failedJobsHistoryLimit: 5
  jobTemplate:
    spec:
      template:
        spec:
          containers:
          - name: reporter-job
            image: registry.example.com/ops-tools/reporter:v2.1.0
            imagePullPolicy: IfNotPresent
            resources:
              limits:
                cpu: "500m"
                memory: "512Mi"
              requests:
                cpu: "100m"
                memory: "256Mi"
          restartPolicy: OnFailure