How do I discern Maidenhead Locator from GPS lat long info.

[astanapane]

The leap years, month and days are fixed. Please let me know if you find any mistake on this.

Is there any way now to test the leap year?

arraywrite ndays,13,NDAY,[0,31,28,31,30,31,30,31,31,30,31,30,31]

if ((year//4 = 0) and (year//400 != 0)) then    'check the leap year
 ndays[2] = 29                                  'then February has 29 days
   else                                         
 ndays[2] = 28                                  'else has 28 days
 endif
 hh = hh + 3                                    'the Hour from GPS is UTC so for our country in Greece we add +3
 if hh>23 then                                  'if the hh+3 hour is greater than 23 (23:00) then
 day = day + 1                                  'we check the day added is true
 hh = hh//24                                    'but the hour not exceed the 24 so go to 00:00
    if (day > ndays[month]) then
 month = month + 1
 day = 1 
        if (month > 12) then
 year = year + 1
 month = 1
        endif
     endif
 endif


NDAY:
ndays[0] = 0
ndays[1] = 31       'January
ndays[2] = 28       'February
ndays[3] = 31       'March
ndays[4] = 30       'April
ndays[5] = 31       'May
ndays[6] = 30       'June
ndays[7] = 31       'July
ndays[8] = 31       'August
ndays[9] = 30       'September
ndays[10] = 31      'October
ndays[11] = 30      'November
ndays[12] = 31      'December

Apart from that i have found the attached file for the PICKIT2. Do you have any reference on that?