time.h File Reference

#include <pbl/util/time.h>
#include <stdbool.h>
#include <stdint.h>
#include <time.h>

Data Structures
struct	TimezoneInfo
	Timezone information, small enough to be kept in RTC registers. More...

Macros
#define	DSTID_BRAZIL   6
	DST rule index of Brazil.
#define	DSTID_LORDHOWE   20
	DST rule index of Lord Howe Island, whose DST offset is half an hour.

Functions
void	time_get_timezone_abbr (char *out_buf, time_t utc_time)
	Get the timezone abbreviation in effect at a given time.
int32_t	time_get_gmtoffset (void)
	Get the offset of the timezone from UTC, without DST.
bool	time_get_isdst (time_t utc_time)
	Check whether a time falls within the DST period.
int32_t	time_get_dstoffset (void)
	Get the offset added during DST.
time_t	time_get_dst_start (void)
	Get the start of the DST period.
time_t	time_utc_to_local (time_t utc_time)
	Convert UTC time, as returned by rtc_get_time(), to local time.
time_t	time_local_to_utc (time_t local_time)
	Convert local time to UTC time.
void	time_util_update_timezone (const TimezoneInfo *tz_info)
	Set the current timezone.
time_t	time_util_get_midnight_of (time_t ts)
	Get the local midnight starting the day of a time.
bool	time_util_range_spans_day (time_t start, time_t end, time_t start_of_day)
	Check whether a range covers a whole day.
time_t	sys_time_utc_to_local (time_t t)
	Syscall wrapper of time_utc_to_local(), for unprivileged code.
time_t	time_util_utc_to_local_offset (void)
	Get the current offset of local time from UTC, including DST.
uint16_t	time_util_get_day (time_t utc_sec)
	Get the local day index of a time.
enum pbl_weekday	time_util_get_day_in_week (time_t utc_sec)
	Get the local day of the week of a time.
int	time_util_get_minute_of_day (time_t utc_sec)
	Get the local minute of the day of a time.
time_t	time_start_of_today (void)
	Return the UTC time that corresponds to the start of today (midnight).
uint32_t	time_get_uptime_seconds (void)
	Get the time since boot.