In the Manage Schedule Intervals interface, click the
Pencil icon that corresponds to the schedule interval you are
changing.
We are changing My Custom Interval, ID = 8.
The Edit Schedule Interval #8 modal appears.
In the modal, adjust the time selection to compensate for the differernce of 7 hours
between UTC and local time (PDT).
Because local time is 7 hour behind UTC, we must add 7 in this interface to achieve the
intentded notification time of 04:00 and 16:00 local time (PDT).
So, change the hour parameter from 4 and 16 to 11 and 23.
Click Save.
The updated interval appears in the Manage Schedule Intervals
interface.