To create a new do-not-disturb period for text messages navigate to Settings > Company > SMS > Do Not Disturb Settings inside your company account.
To add a new do-not-disturb period click Add.
Use the radio buttons on the left to choose which days will be included in the do not disturb period. Enter a time interval into the Start Time and Stop Time fields when SMS text messages should not be sent out by the system. Click Save to save the do-not-disturb period.