Do I need to standardize the month(such as 1,2,3,...,12) and hourly(0,1,2,3...23) variable in SVM regression?

I'm using SVM regression to do a prediction work. the variable i use includes of month value(such as 1,2,3...,12) and hour value(such as 0,1,2,...) and other continuous variable, do i need to standardlize month and hour? why?