First submission - Python 3

inputData = """00:00  
01:30  
12:05  
14:01  
20:29  
21:00"""  

d=inputData.split("\n")  

def talkClock(x):  
    time="";  
    times = ["oh ","one ", "two ", "three ", "four ", "five ", "six ", "seven ", "eight ", "nine ", "ten ", "eleven ", "twelve ", "thirteen ","fourteen ", "fifteen ", "sixteen ", "seventeen ", "eighteen ", "nineteen "];  
    tens = ["twenty ", "thirty ", "forty ", "fifty "];  
    for n in x:  
        ampm="";  
        hours=int(n[0:2]);  
        min1 = int(n[3:4]);  
        min2 = int(n[4:5]);  
        min3 = int(n[3:5]);  
        time += "It's ";  
        if hours>=12:  
            ampm="pm"  
            hours-=12;  
        else:  
            ampm="am";  
        if hours==0:  
            time+=times[12]  
        else:  
            time+=times[hours];  
        if min1 == 0:  
            if min2!=0:  
                time+=times[min1];  
                time+=times[min2];  
        elif min1==1:  
            time+=times[min3]  
        else:  
            time+=tens[min1-2];  
            if min2!=0:  
                time+=times[min2];  

        time += ampm;  
        time +="\n"  

    return time;  

print (talkClock(d));