Parse GPS String for Time and Coordinates

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

void parse_gprmc(char *nmea) {
    int row = 0;
    int col = 0;
    char tokens[20][20];
    int i = 0;
    while(nmea[i] != '\0'){
        if(nmea[i] != ','){
            tokens[row][col] = nmea[i];
            col++;
        }else{
            tokens[row][col] = '\0';
            row++;
            col = 0;
        }
        i++;
    }
    tokens[row][col] = '\0';
    printf("Time: %c%c:%c%c:%c%c\n",
        tokens[1][0], tokens[1][1],
        tokens[1][2], tokens[1][3],
        tokens[1][4], tokens[1][5]
    );
    printf("Latitude: %s %s\n", tokens[3], tokens[4]);

    printf("Longitude: %s %s", tokens[5], tokens[6] );
}

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