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- #pragma once
-
- #include <Arduino.h>
-
- //convenience macros to convert to and from tm years
- #define tmYearToCalendar(Y) ((Y) + 1970) // full four digit year
- #define CalendarYrToTm(Y) ((Y) - 1970)
- #define tmYearToY2k(Y) ((Y) - 30) // offset is from 2000
- #define y2kYearToTm(Y) ((Y) + 30)
-
- /*============================================================================*/
-
- typedef unsigned long timestamp_t;
-
- typedef struct {
- uint8_t Second;
- uint8_t Minute;
- uint8_t Hour;
- uint8_t Wday; // day of week, sunday is day 1
- uint8_t Day;
- uint8_t Month;
- uint8_t Year; // offset from 1970;
- } tmElements_t, TimeElements, *tmElementsPtr_t;
-
- /* low level functions to convert to and from system time */
- void breakTime(timestamp_t time, tmElements_t &tm); // break timestamp_t into elements
- timestamp_t makeTime(tmElements_t &tm); // convert time elements into timestamp_t
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