SLA on 7.5hours

[suzel404]

Hello,

I find the SLA on blog do Nicolett (https://blogdonicolett.com.br/2015/06/11/calculo-de-tempo-util-de-atendimento-sla/) but I need to update this code for a SLA from 09:30 to 12:00 AND 13:30 to 18:00 ==> 7,50 hours.

I don't know how can I do that, need some helps.

Thanks in avance.

Regards,