Use following steps to send schedule SMS:
1) Login in our SMS portal For Login Process visit here.
2) In mobile number column, types your mobile numbers.
3) In message column, type you SMS content.
4) Click on Schedule SMS Option.
5) Select Date, Hour and Minute and click on Schedule option.
6) You can check scheduled SMS in the delivery report in scheduled section.
7) If in case, You want to delete Scheduled SMS then visit here and refer the steps.