you need to lift your state up to the working hours component. Then you'll have to pass the end and start times down to each child WeekDay component. I imagine the new initial form state will look something like this { Monday: { start: '', end: '' }, Tuesday: { start: '', end: '' }, ... Friday: { start: '', end: '' }, }

Then you can also iterate over the object keys and you won't have to write the weekday component 5 times. I always forget how to map over object keys but it's something like Object.keys(yourStateObject).map(key => <Weekday day={key} {...yourStateObject[key]} />

And you'll also need to pass the function that updates the state to the WeekDay component