Yes. You can create scheduled messages with is Smart Message or within the regular messages feature.
Schedule a Message from within a Conversation
When you are already in a conversation with someone. Click on the Calendar icon underneath the text box.
You will now be brought to a Schedule Message page.
Type in the message you would like to schedule and select the time and date you would like it to be sent. Click Schedule.
Note: Existing scheduled messages will be listed in this page as well.
Note: Scheduling a message within a group message in the exact same process.