Canadian Experience Class - 1 year experience calculation

[Possibility]

I finish school April 2018, at that time was already in a NOC B job but it was part time,3 months after I completed school, I receive a new full time job which was also NOC B. How do I calculate the total hours for Canadian experience class for express entry? Should I add both part time and full time hours to acquire 1560 hours? Please advise