but it's not practical for me because i change from IDE ,i need to change ontime and offtime using arduino and save the change in arduino (ok you told me to use EEPROM.) i try but my little experience doesn't help me
Does your sketch compile?
There are examples demonstrating the use of EEPROM, have you looked at them?
if (currentMillis - secondd == 1000) {
use >= as you need to be very lucky to get == (there are others too)
long OnTime1 = 600000 ;
long OffTime1 = 3600000;
Suggest you get in the habit of using 'unsigned long' these will not be negative, will they?