Cron Every 50 Minutes

The cron expression */50 * * * * schedules a task to run at every minute that is divisible by 50, continuously throughout every day.

Field-by-field breakdown:

• */50 (Minute): Every 50th minute, starting from minute 0. The step value /50 causes execution at minutes 0 and 50 within each hour.
• * (Hour): Every hour from 0 through 23. No restriction on which hour.
• * (Day of Month): Every day from 1 through 31. No restriction on the day of the month.
• * (Month): Every month from January through December. No restriction on the month.
• * (Day of Week): Every day of the week from Sunday through Saturday. No restriction on the day.

This means your task will execute twice per hour (at minutes 0 and 50), for a total of 48 executions per day. The spacing is highly uneven: 50 minutes between minute 0 and minute 50, then only 10 minutes between minute 50 and the next hour's minute 0. This extreme unevenness makes */50 rarely the right choice for true 50-minute intervals. However, it can be useful when you want a "nearly hourly" schedule with a bonus check near the end of each hour. For true 50-minute intervals, an external scheduler is required since 50 does not divide evenly into 60 or 1440 (minutes per day). This expression is supported by standard cron on Linux/macOS, as well as cloud services like AWS CloudWatch, Google Cloud Scheduler, and GitHub Actions.