NASA Ocean Color

ocssw V2022

 #ifndef  _TIME_UTILS_H
 #define  _TIME_UTILS_H
  
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>
 #include <math.h>
  
 #define SECONDS_IN_DAY 86400
  
 #ifdef __cplusplus
 extern "C" {
 #endif
  
 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);
  
 #ifdef __cplusplus
 }  // end extern "C"
  
 #include <string>
  
 double udunits2unix(const std::string& str);
 std::string unix2udunits(double unixtime, bool hasZ = true);
  
 #endif
  
 #endif

ydhmsf

char * ydhmsf(double dtime, char zone)

Definition: ydhmsf.c:12

ymds2unix

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

Definition: ymds2unix.c:9

get_time

void get_time(char *pr_time)

Definition: get_time.c:28

day

int32_t day

Definition: atrem_corl1v2.h:308

yds2unix

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

Definition: yds2unix.c:7

isleap

int isleap(int year)

Definition: isleap.c:3

min

These are used to scale the SD before writing it to the HDF4 file The default is and which means the product is not scaled at all Since the product is usually stored as a float inside of this is a way to write the float out as a integer l2prod min

Definition: HOWTO_Add_a_product.txt:76

unix2ydhmsf

char * unix2ydhmsf(double usec, char zone)

Definition: unix2ydhmsf.c:8

unix2ymds

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

Definition: unix2ymds.c:8

yds2tai93

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

Definition: yds2tai.c:4

msec

int32 * msec