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/* Miscellaneous time-related utilities
*
* Copyright (C) 1998 The Free Software Foundation
*
* Authors: Federico Mena <federico@nuclecu.unam.mx>
* Miguel de Icaza <miguel@nuclecu.unam.mx>
*/
#ifndef TIMEUTIL_H
#define TIMEUTIL_H
#include <time.h>
#include <ical.h>
char *isodate_from_time_t (time_t t);
time_t time_add_minutes (time_t time, int minutes);
time_t time_add_day (time_t time, int days);
time_t time_add_week (time_t time, int weeks);
time_t time_add_month (time_t time, int months);
time_t time_add_year (time_t time, int years);
/* Returns the number of days in the specified month. Years are full years (starting from year 1).
* Months are in [0, 11].
*/
int time_days_in_month (int year, int month);
/* Converts the specified date to a time_t at the start of the specified day. Years are full years
* (starting from year 1). Months are in [0, 11]. Days are 1-based.
*/
time_t time_from_day (int year, int month, int day);
/* For the functions below, time ranges are considered to contain the start time, but not the end
* time.
*/
/* These two functions take a time value and return the beginning or end of the corresponding year,
* respectively.
*/
time_t time_year_begin (time_t t);
time_t time_year_end (time_t t);
/* These two functions take a time value and return the beginning or end of the corresponding month,
* respectively.
*/
time_t time_month_begin (time_t t);
time_t time_month_end (time_t t);
/* These functions take a time value and return the beginning or end of the corresponding week,
* respectively. This takes into account the global week_starts_on_monday flag.
*/
time_t time_week_begin (time_t t);
time_t time_week_end (time_t t);
/* These two functions take a time value and return the beginning or end of the corresponding day,
* respectively.
*/
time_t time_day_begin (time_t t);
time_t time_day_end (time_t t);
void print_time_t (time_t t);
#endif
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