every day for 8 hours vs for 8 hours every day.

[Fremr]

Hello,
I would like to ask if both of the sentences below are correct, and if they are, which of them sounds more natural?
I study maths every day for 8 hours.
I study maths for 8 hours every day.

 

[jutfrank]

They're both equally correct and equally natural. The order of the elements every day and for eight hours depends on which element you mean to focus on.