RTC interface

i want code for DS1307 RTC interfaced with the PIC 18F4431

Get Microchip "Application Maestro" (downloadable as part of MPLAB)
It provides code templates of hardware I2C interface routines for 18F chips.

Also see the APP notes on the Dallas/Maxim web site for general info about interfacing to the DS1307
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What language?
Check **broken link removed**.