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A count down timer in c.

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10 Jun 2010CPOL 139.6K   3   6
set the variable count_down_time_in_secs in seconds for desired count down time.The Code is self explanatory.1 minute = 60 secs5 minutes = 60x5 secs30 minutes =60x30 secs1 hour = 60x60 secs#include #include int main (){ unsigned int...
set the variable count_down_time_in_secs in seconds for desired count down time.
The Code is self explanatory.

1 minute = 60 secs
5 minutes = 60x5 secs
30 minutes =60x30 secs
1 hour = 60x60 secs

#include <stdio.h>
#include <time.h>

int main ()
	unsigned int x_hours=0;
	unsigned int x_minutes=0;
	unsigned int x_seconds=0;
	unsigned int x_milliseconds=0;
	unsigned int totaltime=0,count_down_time_in_secs=0,time_left=0;

	clock_t x_startTime,x_countTime;
	count_down_time_in_secs=10;  // 1 minute is 60, 1 hour is 3600

    x_startTime=clock();  // start clock
    time_left=count_down_time_in_secs-x_seconds;   // update timer

	while (time_left>0) 
		x_countTime=clock(); // update timer difference


		time_left=count_down_time_in_secs-x_seconds; // subtract to get difference 

		printf( "\nYou have %d seconds left ( %d ) count down timer by TopCoder 


	printf( "\n\n\nTime's out\n\n\n");

return 0;




This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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Comments and Discussions

SuggestionCan Avoid Multiple Prints Pin
Member 1579730313-Oct-22 19:39
Member 1579730313-Oct-22 19:39 
QuestionClocks_per_seconds Pin
Xu-Ming Koh5-Aug-15 19:09
Xu-Ming Koh5-Aug-15 19:09 
What does the clocks_per_seconds means? The compiler is giving me error on these 2 variables. Saying it is a undefined identifier.
Questionu better read it Pin
Member 103232338-Oct-13 4:20
Member 103232338-Oct-13 4:20 
Questionmiliseconds? Pin
krishna_srivastava11-Mar-13 1:12
krishna_srivastava11-Mar-13 1:12 
GeneralI have to agree to SledgeHammer, this is a good example for ... Pin
imagiro19-Jun-10 0:12
imagiro19-Jun-10 0:12 
GeneralReason for my vote of 1 This is useless. No cmd line params,... Pin
SledgeHammer0118-May-10 16:04
SledgeHammer0118-May-10 16:04 

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