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/*
* Copyright (c) 1986-2000, Hiram Clawson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
*
* Redistributions in binary form must reproduce the
* above copyright notice, this list of conditions and
* the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* Neither name of The Museum of Hiram nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @file astime.h
* @brief contains definitions of structures used for time calculations.
*/
#ifndef _astime_h_
#define _astime_h_
typedef struct ut_instant {
double j_date; /**< julian decimal date, 0 = 01 Jan 4713 BC 12 HR UT */
long year; /**< year, valid range [-4,713, +2,147,483,647] */
int month; /**< [1-12] */
int day; /**< [1-31] */
int i_hour; /**< [0-23] */
int i_minute; /**< [0-59] */
int i_second; /**< [0-59] */
double d_hour; /**< [0.0-23.9999] includes minute and second */
double d_minute; /**< [0.0-59.9999] includes second */
double d_second; /**< [0.0-59.9999] */
int weekday; /**< [0-6] */
int day_of_year; /**< [1-366] */
} UTinstant, * UTinstantPtr;
/* Functions in caldate.c */
long caldat( UTinstantPtr ); /** converts julian date to year,mo,da */
double juldat( UTinstantPtr ); /** returns julian day from year,mo,da */
#endif /* _astime_h_ */
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