What was the total meal and break time in this okaya silk factory?

At the Okaya Silk Factory, the employees were allowed fifteen minutes for lunch, between 10.30 and 10.45, and a ten-minute break from 3.30 to 3.40.

Even though the conditions in the factories were clean, warm, and free of the climactic elements, they were kept on the job till 7.30 p.m. for a total of fourteen hours and twenty minutes. The workers were kept until 10 p.m. when the plan was particularly busy.

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where is the diagram

they died because of a disease during the first spanish colonies.