This research was conducted at State Vocational High School 2 Turen Academic Year 2019/2020. This study uses a quantitative descriptive method with a population of all grade 10 students. The sampling technique uses random sampling. Full day school program data were obtained by interview and questionnaire methods. The ideal study time data outside of class hours was obtained by using the questionnaire method and learning achievement data was obtained by the documentation method. The instrument test was conducted on 89 children at SMKN 2 Turen. Data analysis techniques using simple regression analysis and multiple regression analysis. Based on the results of data analysis, conclusions can be drawn, 1) there is a negative effect of the full day school program on the learning achievement of 10th grade students of SMKN 2 Turen. 2) there is a negative influence of ideal learning time outside of class hours on the learning achievement of 10th grade students of SMKN 2 Turen. 3) there is a negative effect of the full day school program and ideal learning time outside class hours together on the learning achievement of 10th grade students of SMKN 2 Turen.

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