MQL4 Reference Date and Time Year
Returns the current year, i.e., the year of the last known server time.
int Year();
Returned value
Current year.
Note
At the testing, the last known server time is modelled.
Example:
// return if the date is within the range from 1 Jan. to 30 Apr., 2006. if(Year()==2006 && Month()<5) return(0);