Timing for Responses to Emails

It's generally considered acceptable etiquette to wait up to 24 hours before responding to an email. That means you've got one day to get a response back before people start to wonder, did they get it? Are they going to respond? Is that your timeframe somewhere in there? I don't know. What was your response to this? Because I know that you don't normally respond within 24 hours on an email. It's normally what? Once a week? Is that my timeframe somewhere in There? You get the point. The most part, we have a specific direction that we're going with the conversation because we have these books as the guide posts.