Secure Link Services Software Engineer Front End interview questions

It was a long 6 hours project interview. We were asked to bring laptops. The project started in the morning till evening. Lunch was given but we were so much busy with project most of forgot to eat at that time. All the other candidates were highly professional and have more experience than me. They mainly use Angular for front-end development but I have no experience with Angular. So I did the project with React. I failed at time management. There were I guess 5-6 questions. Every questions there were small websites to make using built-in APIs.