/C/Convert calendar time to epoch in c programming

Convert calendar time to epoch in c programming

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

int main(void) {
    struct tm t;
    time_t t_of_day;

    t.tm_year = 2019-1900;  // Year - 1900
    t.tm_mon = 7;           // Month, where 0 = jan
    t.tm_mday = 8;          // Day of the month
    t.tm_hour = 16;
    t.tm_min = 11;
    t.tm_sec = 42;
    t.tm_isdst = -1;        // Is DST on? 1 = yes, 0 = no, -1 = unknown
    t_of_day = mktime(&t);

    printf("seconds since the Epoch: %ld\n", (long) t_of_day);
}

Source: epochconverter.com

Convert calendar time to epoch in c programming

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

int main(void)
{
    time_t     now;
    struct tm  ts;
    char       buf[80];

    // Get current time
    time(&now);

    // Format time, "ddd yyyy-mm-dd hh:mm:ss zzz"
    ts = *localtime(&now);
    strftime(buf, sizeof(buf), "%a %Y-%m-%d %H:%M:%S %Z", &ts);
    printf("%s\n", buf);
    return 0;
}

Source: epochconverter.com

Similar codes

0 vote334 views1 answer
ESP32 timerBegin(0, cpuClock, true);
C
1 vote348 views1 answer
Rename c
C
0 vote323 views1 answer
Aws solution architect vs developer associate
C
4 votes338 views3 answers
Multiplication table in c using array
C
481 votes498 views10 answers
December global holidays
C
0 vote309 views1 answer
Float
C
0 vote368 views1 answer
C printf affichage
C
0 vote313 views1 answer
Pebble scripting Boolean expression
C
0 vote338 views1 answer
Clipboard lib
C
-3 votes342 views5 answers
Return char array in c
C