Kuroko2 is a web-based job scheduler/workflow manager created at Cookpad Inc.

Highly available distributed cron built on RDBMS

In Service Asynchronous Job Scheduler for Rails. This gem handles ActiveRecord model as schedule definition.

Simple Slack Bot Framework. Use Slack RealTime API and Web API.

Mount cron system to Ellen to schedule messages on a specific time.

Mount cron system to Ruboty to schedule messages on a specific time.

This specify the date and time in the cron format.

Chronology for CloudWatch cron expression.