snipplets.dev/code/Arduino/convert_DATE_to_YYYY-MM-DD.c

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// TODO: Добавить описание
// TODO: Добавить в README.md
2023-08-16 22:03:50 +03:00
// Adapted from http://stackoverflow.com/questions/1765014/convert-string-from-date-into-a-time-t
// Formats __DATE__ to YYYY-MM-DD format
String ArduinoDateToDisplayDate(char const *time) {
char s_month[5];
int month, day, year;
static const char month_names[] = "JanFebMarAprMayJunJulAugSepOctNovDec";
sscanf(time, "%s %d %d", s_month, &day, &year);
month = (strstr(month_names, s_month)-month_names)/3;
String monthText = month < 10 ? "0" + String(month) : String(month);
String dayText = day < 10 ? "0" + String(day) : String(day);
return String(year) + "-" + monthText + "-" + dayText;
}
// https://gist.github.com/djohnson001/6df673a8d7f8ac04246a