I need to add an expiry date to my Expert Advisor

here solve error

Add } after return value

Hey any mql coder here to help me please? I have a coded a system via one of my local coder. He coded a simple system for me . But , now this time i need to set trial period for this EA. I mean i want to set this EA's trial time validity for 7 days or 1 month . Anyone here to set my trial period locking code please. Thanks advanced. Now help me how can I lock with trial period before compiling.

Code is here,

long account_number = 1234567;
string account_name = "Mr.Something";
int year = 2020;
int month = 10;
//+------------------------------------------------------------------+
//| Mathematical profit lock.mq4 |
//| Copyright 2019, Mr Jacks |
//| https://www.facebook.com/jacks.24 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2019, Mr Jacks"
#property link "https://www.facebook.com/jacks.24"
#property version "1.00"
#property strict

can anyone give me the similar code for MT5 i do have expiry for MT4 but cant get it to work for MT5

thank you in advance

forget it the answer above work as well in MT5

can anyone help me to add expiry on indicator?? help me ...