Hi Thaina,
As the explanation from our doc link below:
https://techdocs.broadcom.com/us/en/ca-mainframe-software/automation/ca-workload-automation-esp-edition/12-0/using/use-schedule-criteria/special-periods.html
..... include one extra period at the end of your definitions to give ESP a final reference point. For example, define the first day of at least two consecutive fiscal years, so that ESP can calculate the start and finish of the first year.
So you would need one extra special period. And the response from dharwood is a very good method to avoid it.
Now we are approaching the end of the year, hope everyone can find the time to define the holidays and special days proactively for next year.
Happy holidays!
Lucy