San Diego Trip Planner What Time Does The San Diego MTS Service Start?

What time does the San Diego MTS service start? - san diego trip planner

I try to go to school by bus from the city (not a school bus to go get my neighborhood). When I travel, planners used on the website of San Diego Metro Transit System (sdcommute.com) for the arrival time of 7:20. He says that no service is available at the time available.

I know people who take the bus early in the morning for work so how is that true?

What time of service of the San Diego Trolley to start?

Thank you.