user27726: I'm working on my system and I have to make arduino repeat such action or block of code if its the set time .. I'm using DS3231 module to track date and time .Example If I set the time in 6:00 AM and when the arduino reads the module and it turns out that its already 6:00 AM the arduino will now execute some action or the block of code .. sorry for my english .. 

user26717: Check out how the DS3231 Alarm functions work.  They will interrupt even a delay() statement.  At the appointed time the specified function is called.  
This same question was answered here:
How to set Alarms on the DS3231 easily?
For another way to see how to set this up, let me refer you to this article:  
Build Programmable Time-based Switches Using a Real Time Clock
The code can be downloaded Here

27726: <p>I'm working on my system and I have to make arduino repeat such action or block of code if its the set time .. I'm using DS3231 module to track date and time .Example If I set the time in 6:00 AM and when the arduino reads the module and it turns out that its already 6:00 AM the arduino will now execute some action or the block of code .. sorry for my english .. </p>
 26717: <p>Check out how the DS3231 Alarm functions work.  They will interrupt even a delay() statement.  At the appointed time the specified function is called.  </p>

<p>This same question was answered here:</p>

<p><a href="https://arduino.stackexchange.com/questions/30638/how-to-set-alarms-on-the-ds3231-easily?rq=1">How to set Alarms on the DS3231 easily?</a></p>

<p>For another way to see how to set this up, let me refer you to this article:  </p>

<p><a href="https://www.allaboutcircuits.com/projects/build-programmable-time-based-switches-using-a-real-time-clock/" rel="nofollow noreferrer">Build Programmable Time-based Switches Using a Real Time Clock</a></p>

<p>The code can be downloaded <a href="https://www.allaboutcircuits.com/login/?redirect=https//www.allaboutcircuits.com/projects/build-programmable-time-based-switches-using-a-real-time-clock/" rel="nofollow noreferrer">Here</a></p>
