#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <math.h>

Include dependency graph for timeutils.h:

Macros
#define	SECONDS_IN_DAY 86400

Functions
int	isleap (int year)

time_t	gmt_offset (void)

double	yds2unix (int16_t year, int16_t day, double secs)

double	yds2unix_ (int16_t year, int16_t day, double *secs)

void	unix2yds (double usec, int16_t year, int16_t day, double *secs)

char *	unix2ydhmsf (double usec, char zone)

double	ymds2unix (int16_t year, int16_t month, int16_t day, double secs)

void	unix2ymds (double usec, int16_t year, int16_t mon, int16_t day, double secs)

void	unix2ymdhms (double usec, int16_t year, int16_t mon, int16_t day, int16_t hour, int16_t min, double sec)

void	yd2md (int16_t year, int16_t doy, int16_t month, int16_t dom)

char *	ydhmsf (double dtime, char zone)

double	now (void)

void	ymdhms2ydmsec (int yy, int mm, int dd, int hh, int mn, int sc, int32_t year, int32_t day, int32_t *msec)

void	date2ydmsec (char date, int32_t year, int32_t day, int32_t msec)

char *	unix2isodate (double dtime, char zone)

double	isodate2unix (const char *isodate)

void	isodate2ydmsec (char date, int32_t year, int32_t day, int32_t msec)

void	isodate2ymds (const char isodate, int16_t year, int16_t month, int16_t day, double *sec)

double	zulu2unix (char *zulu)

void	addmsec (int32_t year, int32_t day, int32_t *msec, int32_t delta)

void	get_time (char *pr_time)

int	leapseconds_since_1993 (double tai93time)

int	leapseconds_since_1993_unix (double unixtime)

double	unix_to_tai93 (double unixtime)

double	tai93_to_unix (double tai93)

double	unix_to_tai58 (double unixtime)

double	tai58_to_unix (double tai58)

int32_t	jday (int16_t year, int16_t month, int16_t day)

int	jdate (int32_t julianDay, int32_t year, int32_t dayOfYear)

double	yds2tai93 (int16_t iyr, int16_t idy, double sec)

int	ccsds_to_yds (uint8_t cctime, int32_t iyear, int32_t iday, double sec)

double	udunits2unix (const char *str)

const char *	unix2udunits_c (double unixtime, int hasZ)

Macro Definition Documentation

◆ SECONDS_IN_DAY

#define SECONDS_IN_DAY 86400

Definition at line 11 of file timeutils.h.

Function Documentation

◆ addmsec()

void addmsec	(	int32_t *	year,
		int32_t *	day,
		int32_t *	msec,
		int32_t	delta
	)

Definition at line 3 of file addmsec.c.

◆ ccsds_to_yds()

int ccsds_to_yds	(	uint8_t *	cctime,
		int32_t *	iyear,
		int32_t *	iday,
		double *	sec
	)

Definition at line 5 of file ccsds_to_yds.c.

◆ date2ydmsec()

void date2ydmsec	(	char *	date,
		int32_t *	year,
		int32_t *	day,
		int32_t *	msec
	)

Definition at line 4 of file date2ydmsec.c.

◆ get_time()

void get_time ( char * pr_time )

Definition at line 28 of file get_time.c.

◆ gmt_offset()

time_t gmt_offset ( void )

Definition at line 8 of file gmt_offset.c.

◆ isleap()

int isleap ( int year )

Definition at line 3 of file isleap.c.

◆ isodate2unix()

double isodate2unix ( const char * isodate )

Definition at line 61 of file unix2isodate.c.

◆ isodate2ydmsec()

void isodate2ydmsec	(	char *	date,
		int32_t *	year,
		int32_t *	day,
		int32_t *	msec
	)

Definition at line 20 of file date2ydmsec.c.

◆ isodate2ymds()

void isodate2ymds	(	const char *	isodate,
		int16_t *	year,
		int16_t *	month,
		int16_t *	day,
		double *	sec
	)

Definition at line 73 of file unix2isodate.c.

◆ jdate()

int jdate	(	int32_t	julianDay,
		int32_t *	year,
		int32_t *	dayOfYear
	)

Takes in a julian day and mutates year and doy to contain the gregorian year and day of that gregorian year of that julian day.

Parameters

julianDay	The Julian day to be converted
year	Out-parameter indicating the gregorian year that `julianDay` is in
dayOfYear	Out-parameter indicating the number of days into the gregorian year that `julianDay` is.

Definition at line 13 of file jdate.c.

◆ jday()

int32_t jday	(	int16_t	year,
		int16_t	month,
		int16_t	day
	)

Converts a calendar date to the corresponding Julian day starting at noon on the calendar date. Originally implemented by Frederick S. Patt, GSC, November 4 1992. [Van] Flandern and Pulkkinen, Ap. J. Supplement Series 41, November 1979, p. 400.

Parameters

year	4-digit year
month	1-12
day	1-31

Returns: The astronomical Julian day corresponding to the one starting at noon on the calendar day

Definition at line 14 of file jday.c.

◆ leapseconds_since_1993()

int leapseconds_since_1993 ( double tai93time )

Definition at line 58 of file leapsecond.c.

◆ leapseconds_since_1993_unix()

int leapseconds_since_1993_unix ( double unixtime )

Definition at line 71 of file leapsecond.c.

◆ now()

double now ( void )

Definition at line 361 of file HISTORY.txt.

◆ tai58_to_unix()

double tai58_to_unix ( double tai58 )

Definition at line 29 of file yds2tai.c.

◆ tai93_to_unix()

double tai93_to_unix ( double tai93 )

Definition at line 16 of file yds2tai.c.

◆ udunits2unix()

double udunits2unix ( const char * str )

Definition at line 116 of file udunits2unix.cpp.

◆ unix2isodate()

char* unix2isodate	(	double	dtime,
		char	zone
	)

creates a time string "1994-11-05T13:15:30.123Z"

Parameters

dtime	unix time as a double
zone	time zone character 'G'=gmt, 'L'=local

Returns: ISO 8601 time string (internal memory)

Definition at line 10 of file unix2isodate.c.

◆ unix2udunits_c()

const char* unix2udunits_c	(	double	unixtime,
		int	hasZ
	)

Definition at line 121 of file udunits2unix.cpp.

◆ unix2ydhmsf()

char* unix2ydhmsf	(	double	usec,
		char	zone
	)

Definition at line 8 of file unix2ydhmsf.c.

◆ unix2yds()

void unix2yds	(	double	usec,
		int16_t *	year,
		int16_t *	day,
		double *	secs
	)

Definition at line 7 of file unix2yds.c.

◆ unix2ymdhms()

void unix2ymdhms	(	double	usec,
		int16_t *	year,
		int16_t *	mon,
		int16_t *	day,
		int16_t *	hour,
		int16_t *	min,
		double *	sec
	)

Definition at line 8 of file unix2ymdhms.c.

◆ unix2ymds()

void unix2ymds	(	double	usec,
		int16_t *	year,
		int16_t *	mon,
		int16_t *	day,
		double *	secs
	)

Definition at line 8 of file unix2ymds.c.

◆ unix_to_tai58()

double unix_to_tai58 ( double unixtime )

Definition at line 23 of file yds2tai.c.

◆ unix_to_tai93()

double unix_to_tai93 ( double unixtime )

Definition at line 11 of file yds2tai.c.

◆ yd2md()

void yd2md	(	int16_t	year,
		int16_t	doy,
		int16_t *	month,
		int16_t *	dom
	)

Definition at line 6 of file yd2md.c.

◆ ydhmsf()

char* ydhmsf	(	double	dtime,
		char	zone
	)

Definition at line 12 of file ydhmsf.c.

◆ yds2tai93()

double yds2tai93	(	int16_t	iyr,
		int16_t	idy,
		double	sec
	)

Definition at line 4 of file yds2tai.c.

◆ yds2unix()

double yds2unix	(	int16_t	year,
		int16_t	day,
		double	secs
	)

Definition at line 7 of file yds2unix.c.

◆ yds2unix_()

double yds2unix_	(	int16_t *	year,
		int16_t *	day,
		double *	secs
	)

Definition at line 34 of file yds2unix.c.

◆ ymdhms2ydmsec()

void ymdhms2ydmsec	(	int	yy,
		int	mm,
		int	dd,
		int	hh,
		int	mn,
		int	sc,
		int32_t *	year,
		int32_t *	day,
		int32_t *	msec
	)

Definition at line 3 of file ydhms2ydmsec.c.

◆ ymds2unix()

double ymds2unix	(	int16_t	year,
		int16_t	month,
		int16_t	day,
		double	secs
	)

Definition at line 9 of file ymds2unix.c.

◆ zulu2unix()

double zulu2unix ( char * zulu )

Definition at line 3 of file zulu2unix.c.

Macros

Functions

Macro Definition Documentation

◆ SECONDS_IN_DAY

Function Documentation

◆ addmsec()

◆ ccsds_to_yds()

◆ date2ydmsec()

◆ get_time()

◆ gmt_offset()

◆ isleap()

◆ isodate2unix()

◆ isodate2ydmsec()

◆ isodate2ymds()

◆ jdate()

◆ jday()

◆ leapseconds_since_1993()

◆ leapseconds_since_1993_unix()

◆ now()

◆ tai58_to_unix()

◆ tai93_to_unix()

◆ udunits2unix()

◆ unix2isodate()

◆ unix2udunits_c()

◆ unix2ydhmsf()

◆ unix2yds()

◆ unix2ymdhms()

◆ unix2ymds()

◆ unix_to_tai58()

◆ unix_to_tai93()

◆ yd2md()

◆ ydhmsf()

◆ yds2tai93()

◆ yds2unix()

◆ yds2unix_()

◆ ymdhms2ydmsec()

◆ ymds2unix()

◆ zulu2unix()