- C Programming Examples
- C Programming Examples
- C Print Hello World
- C Get Input from User
- C Print Integer
- C Add Two Numbers
- C Add Subtract Multiply Divide
- C Add n Numbers
- C Area Perimeter of Square
- C Area Perimeter of Rectangle
- C Area Circum of Circle
- C Fahrenheit to Celsius
- C Celsius to Fahrenheit
- C Inches to Centimeters
- C Kilogram to Gram
- C Reverse a Number
- C Swap Two Numbers
- C Interchange Numbers
- C Print ASCII Value
- C Print Fibonacci Series
- C Check Palindrome or Not
- C Check Armstrong or Not
- C Find Armstrong Numbers
- C Find nCr and nPr
- C Find Profit Loss
- C Sum of their Square
- C First & Last Digit Sum
- C Sum of All Digit
- C Product of All Digit
- C Print Total Digit in Number
- C Check Perfect Number
- C Find Basic Gross Salary
- C Round Number to Integer
- C Print Series upto n Term
- C Find Factors of Number
- C if-else & Loop Programs
- C Check Even or Odd
- C Check Prime or Not
- C Check Alphabet or Not
- C Check Vowel or Not
- C Check Leap Year or Not
- C Is Reverse Equal Original
- C Make Calculator
- C Add Digits of Number
- Count Positive Negative Zero
- C Largest of Two Numbers
- C Largest of Three Numbers
- C Smallest of Two Numbers
- C Smallest of Three Numbers
- C Find Factorial of Number
- C Find LCM & HCF
- C Find LCM of n Numbers
- C Find HCF of n Numbers
- C Find Arithmetic Mean
- C Find Average, Percentage
- C Find Student Grade
- C Print Table of Number
- C Print Prime Numbers
- C Find Discount Purchase
- C Calculate Parcel Charge
- C Calculate Wage of Labor
- C Print Phone Bill
- C Conversion programs
- C Decimal to Binary
- C Decimal to Octal
- C Decimal to Hexadecimal
- C Binary to Decimal
- C Binary to Octal
- C Binary to Hexadecimal
- C Octal to Decimal
- C Octal to Binary
- C Octal to Hexadecimal
- C Hexadecimal to Decimal
- C Hexadecimal to Binary
- C Hexadecimal to Octal
- C Pattern Programs
- C Pattern Printing Programs
- C Print Diamond Pattern
- C Print Floyd's Triangle
- C Print Pascal's Triangle
- C Array Programs
- C 1D Array Programs
- C Linear Search
- C Binary Search
- C Largest Element in Array
- C Smallest Element in Array
- C Second Largest/Smallest
- C Count Even Odd
- C Array Element at Even
- C Array Element at Odd
- C Print Even Array Elements
- C Print Odd Array Elements
- C Sum/Product of Even/Odd
- C Reverse an Array
- C Insert Element in Array
- C Delete Element from Array
- C Merge Two Arrays
- C Bubble Sort
- C Selection Sort
- C Insertion Sort
- C Print Common Elements
- C 2D Array Programs
- C Add Two Matrices
- C Subtract Two Matrices
- C Transpose a Matrix
- C Multiply Two Matrices
- C Sum All Matrix Elements
- C Largest Element in Matrix
- C Print Row Column Total
- C 3D Array Programs
- C String Programs
- C Print String
- C Find Length of String
- C Compare Two String
- C Copy a String
- C Concatenate String
- C Reverse a String
- C Count Vowels Consonants
- C Replace Vowel in String
- C Delete Vowels from String
- C Delete Word from String
- C Frequency of Character
- C Count Word in String
- C Remove Spaces from String
- C Sort a String
- C Sort String in Alphabetical
- C Sort Words in Ascending
- C Sort Words in Descending
- C Uppercase to Lowercase
- C Lowercase to Uppercase
- C Swap Two Strings
- C Check Anagram or Not
- C Check Palindrome String
- C Print Number in Words
- C Print Successive Character
- C Character without Space
- C Remove Extra Spaces
- C File Programs
- C Read a File
- C Write Content to File
- C Read & Display File
- C Copy a File
- C Merge Two Files
- C Reverse File
- C Count All Character in File
- C List Files in Directory
- C Encrypt & Decrypt a File
- C Delete a File
- C Misc Programs
- Generate Random Numbers
- C Print Date Time
- C Print Message with Time
- C Get IP Address
- C Print Smiling face
- C Pass Array to Function
- Add Two Numbers using Pointer
- C Address of Variable
- C Shutdown Computer
- C Programming Tutorial
- C Tutorial
- C Programming Library
- C Standard Library
- C Programming Test
- C Programming Test
- Give Online Test
- All Test List
C Program to Print Date and Time
In this article you will learn and get code about printing of date and time in following ways:
- Print Date/Time with Default Format
- Print Date in DD-MM-YYYY Format
- Print Time in HH:MM:SS Format
- Print Date/Time with Month Name and AM/PM Format
Print Date and Time
Let's create a program that prints the current date and time with default format.
#include<stdio.h> #include<conio.h> #include<time.h> int main() { time_t tm; time(&tm); printf("Current Date/Time = %s", ctime(&tm)); getch(); return 0; }
This program was build and run under Code::Blocks IDE. Here is its sample run:
The time_t is not a primitive data type, rather it is a data type from the C ISO library define to store system's time value. This system's time values are returned from the standard library function named time().
The function ctime() returns a string that represents the local time based on tm (argument) timer. The ctime() function is defined in time.h header file.
Print Date in DD-MM-YYYY Format
Now let's format the current date in DD-MM-YYYY form, where DD represents day's date (1-31), MM represents month (1-12), and YYYY represents the year.
#include<stdio.h> #include<conio.h> #include<time.h> int main() { time_t t; t = time(NULL); struct tm tm = *localtime(&t); printf("Current Date: %d-%d-%d", tm.tm_mday, tm.tm_mon+1, tm.tm_year+1900); getch(); return 0; }
Here is its sample output:
The function localtime() returns the local time of system. It is defined in time.h header file. It accepts a parameter that represents the pointer to time_t object. And returns a pointer to a struct tm object. Now using the structure, the object tm can access the data members say tm_mday, tm_mon and tm_year respectively. Print its value as output that will be the Date, Month, and Year.
Note - The tm_year field is relative to 1900 on all POSIX-compliant platforms. Therefore we have added 1900 to it. If 1900 was not added to it, then in place of 2020 as current year, it would print 120 as current year, that tells, it is 120 years since 1900.
Note - The tm_mon displayed starting from 1 rather with 0. Because, if 1 is not added, then for January it will show 0th month (starting or very first month of every year).
Print Time in HH:MM:SS Format
Let's create the same program as of previous one with little changes to print time in HH:MM:SS format in place of date. Here HH represents hours, MM represents minutes, and SS represents seconds.
#include<stdio.h> #include<conio.h> #include<time.h> int main() { time_t t; t = time(NULL); struct tm tm; tm = *localtime(&t); printf("Current Time: %d:%d:%d", tm.tm_hour, tm.tm_min, tm.tm_sec); getch(); return 0; }
Here is its sample output:
Print Date/Time with Month Name & AM/PM
This program uses switch case to match the month number and print its name. For example, if month number is 1, then print it as Jan, and if it is 2, then print it as Feb and so on. For time, we have used if-else statement to match whether the current hour value is greater than 12 or not. If it is greater than 12, then print PM, otherwise print AM.
#include<stdio.h> #include<conio.h> #include<time.h> int main() { time_t t; t = time(NULL); struct tm tm = *localtime(&t); int m; printf("Today's Date: %d ", tm.tm_mday); m = tm.tm_mon+1; switch(m) { case 1: printf("Jan, "); break; case 2: printf("Feb, "); break; case 3: printf("Mar, "); break; case 4: printf("Apr, "); break; case 5: printf("May, "); break; case 6: printf("June, "); break; case 7: printf("July, "); break; case 8: printf("Aug, "); break; case 9: printf("Sep, "); break; case 10: printf("Oct, "); break; case 11: printf("Nov, "); break; case 12: printf("Dec, "); break; } printf("%d", tm.tm_year+1900); printf("\nToday's Time: "); if(tm.tm_hour>=12) { if(tm.tm_hour==12) printf("12"); else printf("%d", tm.tm_hour-12); printf(":%d:%d PM", tm.tm_min, tm.tm_sec); } else printf("%d:%d:%d AM", tm.tm_hour, tm.tm_min, tm.tm_sec); getch(); return 0; }
Here is the sample output produced by above program:
Same Program in Other Languages
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