If you have sequences set up, Momence is constantly looking for the triggers you've chosen before taking actions like sending messages whenever it gets the green light.
Since its doing this at all hours on your behalf, you may prefer that your customers only receive marketing messaging between normal waking hours.
To do this, click Marketing > Sequences > click the dropdown menu to the right.
Then, enter you're start time and stop time.
Actions triggered before your 'start time' will be re-scheduled to send after your start time. Actions that are triggered after the Stop time will be rescheduled to send the following day, beginning at the Start time.