Note that this feature will not work with your phone's default text message app, only Google Messages.
If you don't know how to change your default messaging app, don't worry -- the first time you open Google Messages you'll be asked if you want to make the switch.
Below I'll show you how to schedule a text message, including picking a custom send time and how to edit the message if you want to change anything. .The first time you launch the Google Messages app and open a conversation after updating to the latest version, you'll see a small pop-up window appear over the Send button letting you know you can schedule messages.To schedule a text, start typing your message then long-press the Send button.To edit the message or the scheduled delivery time, tap the clock icon