Create a one-time scheduled shutdown and startup, without adjusting the default schedule.
Use the Change Power On/Off Schedule display to change the power-on and power-off schedule for a single day.
For example, to change the startup and shutdown time for the plant's company picnic on Wednesday, May 3:
To display the schedule starting on a different date, type the date you want to start with in the Start list at field and press Enter. The information that is displayed begins with the date you specify.