To add a day/time combination to the Day/Time drop down list on the Trending tab:
Click the Add icon next to the drop down list to display the Add Day Patterns and Times dialog box.
Key the Days, the same way as you would on a worksheet. See Entering Days of the Week for details.
Key the Start Time and End Time the same way as on a worksheet. See Entering Start/End Times for details.
Click <Add> to add the new day(s)/time to the selection list.
To add additional days/times, repeat steps 2 to 4.
When you are finished adding days/times, click <Close> to save the additions and close the Add Day Patterns and Times window.