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The second option is to add a read of the I2CRCV
register before the first call to i2c_read() in your ds1307_read() function, for example changing
your ds1307_read() function the following:

v ...

Simple answer then, switch to using software I2C. On your chip this will make no difference at all (software can give over a MHz on a chip at this speed), and will fix the issue.
Using a software I2C ...

One other thing, your I2C setup should have slow=100000, not fast=100000.
Using 'fast' tells the compiler that the device supports fast timings. The DS1307, doesn't.

Thank you for your efforts. Th ...

One thing to try. After every I2C_stop() in the code add delay_us(2).

I2C requires a minimum time between an I2C stop and a subsequent I2C start. Typically a couple of uSec. At normal processor spe ...

Is Vbat of the DS1307 connected to a good coin cell battery ?
Button Battery good, minutes and hours are running fine and accurate.

You claim the interrupts are working, but they are not enabled in what you post. You have also left out the chip configuration, so we cannot tell if it is setup reasonably.
What clock are you runnin ...

#include <testdspccs.h>

//----LCD Driver and Port
#include <Flex_LCD420.C>
#define USE_RW_PIN 1
#define LCD_BL PIN_D1

//----------FAST = 100000 SDA = PIN_F2, SCL = PIN_F3, FORCE ...

Every things works fine timer1 interrupt, date and time. This code works on pic18f and pic16f. But on dspic30f4013, the second is reading zeros.
using mikroc, it work fine with same hardware.

#include <testdspccs.h>

//----LCD Driver and Port
#include <Flex_LCD420.C>
#define USE_RW_PIN 1
#define LCD_BL PIN_D1

//----------FAST = 100000 SDA = PIN_F2, SCL = PIN_F3, FORCE ...