For playtime modifiers, you have to find the amount of seconds your new playtime should have.
A program to simplify the process by a lot:
http://www.bullywiihacks.com/t489-playtime-to-seconds-converter
Therefore, you are required to convert everything like days, houres, minutes, etc. to seconds!
Example:
10 days, 5 houres, 34 minutes, 40 seconds
10*24*60*60+5*60*60+34*60*60+40
Once you´ve calculated the result, you still need to convert to HEX, (like always).
Bully
A program to simplify the process by a lot:
http://www.bullywiihacks.com/t489-playtime-to-seconds-converter
Therefore, you are required to convert everything like days, houres, minutes, etc. to seconds!
Example:
10 days, 5 houres, 34 minutes, 40 seconds
10*24*60*60+5*60*60+34*60*60+40
Once you´ve calculated the result, you still need to convert to HEX, (like always).
Bully