The canonical solution to this kind of thing is to create a canonical Q&A then close stuff as a duplicate of it.
The canonical croncanonical cron Q&A is a good example of this.
For new cron related questions I will often cast a close duplicate vote on it and then leave a comment
Please work your way through the link above it will almost certainly help you solve your problem. If it doesn't, it will help you gather information that will help us to help you. You should add this information to your question.
The intention here is that should someone find the canonical answer lacking then it will have at least given them the tools to gather the information. If someone did do this then we have the additional benefit of being able to add something new to the canonical Q&A.