Cron Job Every 8 Hours

An 8-hour cron runs 3 times per day at hours 0, 8, and 16 (midnight, 8 AM, and 4 PM). This aligns well with 8-hour work shifts or tri-daily update requirements.

Cron Expression

crontab syntax

0 */8 * * *

minute

*/8

hour

day (month)

month

day (week)

This expression runs every 8 hours. That's 3 times per day.

Common Use Cases

Tri-daily summaries

Shift-based reports

Regular maintenance windows

Data reconciliation

Compliance checks

How It Works

Enter your endpoint URL

Paste your webhook URL, API endpoint, or any HTTP(S) address you want to call.

Test your request

We'll send a test request to verify your endpoint responds correctly.

Create your cron job

We'll call your endpoint every 8 hours automatically. No server required.

Why Use CronUptime?

No Server Required

Schedule cron jobs without managing infrastructure. We handle execution at the edge.

Reliable Timing

Built on Cloudflare Workers for 99.9%+ uptime. Your jobs run on time, every time.

Frequently Asked Questions

The cron expression for every 8 hours is 0 */8 * * *. This runs at hours 0, 8, and 16 (midnight, 8 AM, and 4 PM) - three times per day.

An 8-hour interval aligns with typical work shifts, making it useful for shift handoff reports, tri-daily status updates, or tasks that need coverage across the day without hourly frequency.