If you're doing 2+4 and you're in the 2, then yes. If you are actually in the pharmacy program, then no. Although as I recall, some states have weird intern laws so you might not be an intern immediately like in my state. If such is the case, getting certified might increase your pay if you are working until you are able to become an intern. But all things being equal, no.
My state is one of those that you can't intern until after your 2nd year. I'm planning on getting certified before starting school this fall. I'm moving to a brand new area and hope that will help me in the job search
Does your school offers like an internship fair for students to interview with stores to work in the summer? TBH unless you have an in with a company or previous work experience as a tech, it's extremely hard to find a part-time/weekend tech position (I'm assuming you only want to work part-time during pharmacy school)