LambdaCron is a serverless cron tool. It provides a way to run scheduled tasks on the AWS cloud defined in YAML and managed by a command line tool (LambdaCron CLI). Tasks are scheduled using the same syntax for expressions as Linux crontab. Traditionally, to run scheduled tasks you need set up cron jobs in the server where you want them to run. This doesn't make sense when building a serverless architecture, where servers are transparent to users. In order to solve this AWS provides CloudWatch Events, which allow you to run scheduled events (called rules) to invoke AWS services in a cron-like way. While it is a useful tool, it is very different from the traditional way to manage and run cron jobs and it has some serious limitations.