Automatically Deleting data from DynamoDB Table and S3

I have started exploring DynamoDB and S3 recently.

I went through the Developer Guide, I was curious that Is there any way to delete data from DynamoDB Table or S3 bucket based on some condition ?

The conditions here may be time/space. Like I want to delete data from DynamoDB/S3 after some time(say 200 days) or if it exceeds some limit like 2 GB.