Yes, you can use ‘Schedule Task’. You can schedule a text to be sent at a specific time(works with both SMS and MMS).
In the app, click on‘Inbox’on the top left, then click ‘More’to go the feature page. （You can also hold and then swipe right on the conversation page ）
Click on ‘Schedule Task‘, then you can schedule the message to be sent at your desired time.
Delay sending: please go to handcent settings>>All>>send message settings>>Delay sending