Unfortunately, there is no direct way to mass archive channels based on the date of channel creation. However, you can use Chronicle’s “Inactive Channel Scanner” feature to archive channels based on the age of its recent messages. To do so, visit the “Channels” page in Chronicle’s dashboard, and use the “Channel Activity” card to view a breakdown of your active, semi-active, and inactive channels, as well as the “Cleanup Workspace” card to archive inactive channels directly.