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Reference 195

Valid Hours / Hour Parts

When determining whether a task is valid for execution, you can limit valid times of the day to either a

contiguous time range (sometimes called a Day Part) or a specified range of minutes within a specified

range of hours, called Hour Parts.

An hour range is simple to understand - there's a beginning time and an ending time, and if the task

execution attempt occurs within that time range, it is considered valid and executes. The default value

for the time of day property is 00:00:00 through 23:59:59, which means the entire day. You can use this

type of range to allow a task to execute, for example, between 4:00 PM and 5:59:00 PM only.

An hour part range is a bit more complex. As shown in the example, you set beginning and ending

hours and separately, beginning and ending minutes within each of the valid hours.

Advanced Properties Settings using Hour Parts

In the example, the beginning hour is 3 AM and the ending hour is 4 AM. The beginning and ending

minute values are 10 and 20, respectively. In short, this time restriction means that the task will

execute only in the following time ranges:

3:10:00 - 3:20:59 AM (note the seconds values)

4:10:00 - 4:20:59 AM (note the seconds values)

Using hour parts allows you to refine a task's valid execution time to only certain minute ranges within

specified hour ranges, providing a very flexible means of controlling task execution times.

More About Start Minute and End Minute Values

When using Hour Parts to set the valid times a task can run, you may have noticed there is no

provision for a seconds value, as there is in the standard Hours entries. In task validation, they are

handled in the following way:

Start Minute - the seconds value is zero, i.e. 10:00

End Minute - the seconds value is 59, i.e. 20:59

This means that if we set a valid minutes range within an hour to 10 through 20, it actually is 10:00

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Broadcast Tools ADMS 44.22 Manual de Serviço Página 195