Parse GPS String for Time and Coordinates

#include <stdio.h>
#include <string.h>

void parse_gprmc(char *nmea) {
    char str[7][20];
    int i=0, j=0;
    char *token;
     token=strtok(nmea,",");
        for( j=0;*(token+j)!='\0';j++){
            str[i][j]=*(token+j);
        }
        str[i][j]='\0';
    for(int i=1;i<7;i++){

        token=strtok(NULL,",");
        for( j=0;*(token+j)!='\0';j++){
            str[i][j]=*(token+j);
        }
        str[i][j]='\0';

    }
    char time[8];
    int c=0;
    for(int i=0;i<8;i++){
        if(i==2||i==5){
            time[i]=':';
        }
        else{
            time[i]=str[1][c++];
        }
    }
    printf("Time: %s\n",time);
    printf("Latitude: %s %s\n",str[3],str[4]);
    printf("Longitude: %s %s\n",str[5],str[6]);
    
}

int main() {
    char nmea[100];
    fgets(nmea, sizeof(nmea), stdin);
    parse_gprmc(nmea);
    return 0;
}