I want gps out NMEA $GPRMC only absence of millisecond format

$GPRMC,080133.000,A,0834.1982,N,07659.5825,E,0.01,9.61,121118,,,A*68

pls convert to this out

$GPRMC,080133,A,0834.1982,N,07659.5825,E,0.01,9.61,121118,,,A*68

(pls delete only millisecond format)

We need to see your code for collecting that sentence.

I don't have a code in my hand pls help me to write a code

You might explain why you want to do this, there are several libraies that read NMEA sentences from GPSs rather well.

If your after someone writing a specific bit of code for you, then ask over in 'Gigs and collaborations'

My old gps clock sync and Pls give me a libraies that read NMEA sentences from GPSs

Pls give me a libraies that read NMEA sentences from GPSs

The TinyGPS library.
The TinyGPS++ library.
The NeoGPS library.

Those libraries all use a serial port to read the GPS data. If your GPS does not have a serial port those libraries will not work. It would be helpful if you give us a link to the data sheet or manual for your GPS.

// GPS_READ_MSG_PRINT
// V0.4 basics of read GPS
// Jack plug/socket wiring
// tip VCC (Y)
// 12 TX GPS (R)
// 13 RX GPS (OR)
// ring GND (BWN)

#include "SoftwareSerial.h"

// connections GPSRX -> RX, GPSTX <- TX
#define RX 12
#define TX 13

// GPS data buffer, gps message ID
char gpsbuf[200];
char MSGID[10] = "$GPRMC";

// jack GPS 3(TX) -> RX, GPS 2(RX) <- TX
SoftwareSerial gps (RX, TX);

void setup() {
pinMode(RX, INPUT);
pinMode(TX, OUTPUT);

Serial.begin(9600);

gps.begin(9600); // start GPS serial

Serial.println("Start");
}

void loop() {
// read MSGID line
do {
getline(gpsbuf);
} while (strncmp(gpsbuf, MSGID, 6) != 0);

Serial.print(gpsbuf);
}

// get a line from the GPS, inc /r/n, add /0
void getline(char *buf) {
char c;
int p = 0;

do {
if (gps.available() > 0) {
c = gps.read();
buf[p++] = c;
}
} while ( c != '\n');
buf[p] = '\0';
}

What does that code actually do? How does that differ from what you want?

After you have populated gpsbuf, BEFORE you print it, locate the first '.' (using strchr()) and the first comma after the first dot. Use a for loop to move the characters from the first comma to the end left by the distance between the dot and the comma.