To display the time on two 8x8 LED matrices using data from the RTC DS1302 module, you need to combine them using an Arduino. To help you, you can try following these steps:
Connect the RTC DS1302 module and two 8x8 LED matrices to the Arduino according to the correct connection pins.
Use the library for the DS1302 RTC module to read the time from the RTC module.
Use the library for 8x8 LED matrix to display the time on the LED matrix.
If you have difficulty combining them, you may need to create a custom Arduino program to read the time from the RTC module and display it onto the LED matrix. These may require knowledge of Arduino programming and data processing.
Try
time calculator to manage your time efficiently.