#include <iostream.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <iomanip.h>

char *Abbre[]={"UTC","GMT","BST","IST","WET","WEST","CET","CEST","EET",
				"EEST","MSK","MSD","AST","ADT","NST","NDT","EST","EDT",
				"CST","CDT","MST","MDT","PST","PDT","HST","AKST","AKDT",
				"AEST","AEDT","ACST","ACDT","AWST"};
float AbbTime[]={0,0,1,1,0,1,1,2,2,3,3,4,-4,-3,-3.5,-2.5,-5,-4,-6,-5,-7,
					-6,-8,-7,-10,-9,-8,10,11,9.5,10.5,8};


float AbbrToTime(char *Abbr)
{
	int i=0;
	while(strcmp(Abbr,Abbre[i]))
	{
		i++;
	}
	return AbbTime[i];
}

void ToTime24(char *Time12,char *apm,char *Time24)
{	
	int hour,minute;
	sscanf(Time12,"%d:%d",&hour,&minute);
	if(apm[0]!='\0')
	{
		if(!strcmp(apm,"a.m.")) 
			if(hour!=12)
				strcpy(Time24,Time12);
			else sprintf(Time24,"%d:%d",0,minute);
		else 
		{
			if(hour!=12)
			{
				hour=hour+12;
				sprintf(Time24,"%d:%d",hour,minute);
			}
			else sprintf(Time24,"%d:%d",12,minute);
		}
	}
	else if(!strcmp(Time12,"noon"))
		sprintf(Time24,"%d:%d",12,0);
	else sprintf(Time24,"%d:%d",0,0);
}

void ToTime12(char *Time24)
{
	int hour,minute;
	sscanf(Time24,"%d:%d",&hour,&minute);
	if(hour==0 && minute==0)
		printf("midnight\n");
	else  if(hour==12 && minute==0)
		printf("noon\n");
	else if(hour==0)
		cout<<12<<":"<<setw(2)<<setfill('0')<<minute<<" a.m."<<endl;
	else if(hour<12)
		cout<<hour<<":"<<setw(2)<<setfill('0')<<minute<<" a.m."<<endl;
	else if(hour==12)
		cout<<12<<":"<<setw(2)<<setfill('0')<<minute<<" p.m."<<endl;
	else cout<<hour-12<<":"<<setw(2)<<setfill('0')<<minute<<" a.m."<<endl;
}

void main()
{	
	int Hour,Minute;
	char Time[6],apm[5],From[5],To[5],Time24[6];
	float TimeOfAbbre[2],Distance;
	int n;
	cin>>n;
	while(n--)
	{
		scanf("%s ",Time);
		if(strcmp(Time,"noon") && strcmp(Time,"midnight"))
			scanf("%s %s %s",apm,From,To);
		else 
		{
			scanf("%s %s",From,To);
			apm[0]='\0';
		}
		TimeOfAbbre[0]=AbbrToTime(From);
		TimeOfAbbre[1]=AbbrToTime(To);
		ToTime24(Time,apm,Time24);
		Distance=TimeOfAbbre[1]-TimeOfAbbre[0];
		sscanf(Time24,"%d:%d",&Hour,&Minute);
		if(Distance==0)
		{	if(strcmp(Time,"noon") && strcmp(Time,"midnight"))
				cout<<Time<<" "<<apm<<endl;
			else cout<<Time<<endl;
		}
		else if(Distance>0)
		{
			if(floor(Distance)==Distance)
			{
				Hour=Hour+Distance;
				if(Hour>=24) Hour=Hour-24;
				sprintf(Time24,"%d:%d",Hour,Minute);
				ToTime12(Time24);
			}
			else 
			{
				Hour=Hour+floor(Distance);
				Minute=Minute+30;
				if(Minute>=60)
				{
					Minute=Minute-60;
					Hour=Hour+1;
				}
				if(Hour>=24) Hour=Hour-24;
				sprintf(Time24,"%d:%d",Hour,Minute);
				ToTime12(Time24);
			}
		}
		else
		{
			if(floor(Distance)==Distance)
			{
				Hour=Hour+Distance;
				if(Hour<0) Hour=Hour+24;
				sprintf(Time24,"%d:%d",Hour,Minute);
				ToTime12(Time24);
			}
			else
			{
				Hour=Hour+floor(Distance)+1;
				Minute=Minute-30;
				if(Minute<0)
				{
					Minute=Minute+60;
					Hour=Hour-1;
				}
				if(Hour<0) Hour=Hour+24;
				sprintf(Time24,"%d:%d",Hour,Minute);
				ToTime12(Time24);
			}
		}

	}
}