simulation time in fdtd

hai to all,
i hav an doubt in time increment in fdtd.
we r multiplying the value of delt(time increment ) with electric and magnetic field only.how will it affect the simulation time.
we r not incrementing the simulation time by delt.

please describe your problem clearly.

usually, time step is determined by CFL condition.

yes sir,time step is determined by cfl condition.
my question is how to increment time simulation in every time in coding.
what i am saying is that we r incrementing simulation time in coding simply by n=n+1.
it dosent include any time step parameter in it.
how time increment affects simulation time in this aspect. then why need to go adi fdtd .

hi
just use tic anctoc command

do you have any paper about this subject till now

gokul please dont give irrelevant information.
it is not used for joking.
it is used for sharing some useful informations.