AWS Cron Every Hour

In AWS EventBridge, the cron expression for every hour is cron(0 * * * ? *). This triggers at minute 0 of every hour, every day. The ? in the day-of-week field means "no specific value" — a required AWS syntax element.

For simple hourly scheduling, AWS also offers the rate expression syntax: rate(1 hour). Rate expressions are easier to read for basic intervals but can't express complex schedules like "every hour on weekdays only."

All AWS cron expressions run in UTC. If you need a specific timezone, calculate the UTC offset: for 9 AM Eastern (UTC-5), use hour 14. Note that UTC offsets change with daylight saving time, so some teams schedule in UTC and handle timezone logic in their Lambda function.