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#ifndef ___TIME_H__
#define ___TIME_H__
#define SEC_PER_MIN (60L)
#define MIN_PER_HR (60L)
#define SEC_PER_HR ((SEC_PER_MIN) * (MIN_PER_HR))
#define HR_PER_DAY (24L)
#define SEC_PER_DAY ((SEC_PER_HR) * (HR_PER_DAY))
#define DAY_PER_YEAR (365L) /* not counting leap year */
#define SEC_PER_YEAR ((SEC_PER_DAY) * (DAY_PER_YEAR))
#define MON_PER_YEAR (12L)
#define ISLEAPYEAR(y) ((y) % 4L == 0 && ((y) % 100L != 0 || (y) % 400L == 0))
/* it's really 1970, but tm_year is 0 based from 1900 */
#define EPOCH_YEAR (70)
/* months are zero based, so February is 1, etc. */
#define DAYS_IN(y, m) (m == 1 ? (ISLEAPYEAR(y) ? 29 : 28) : \
((m == 3 || m == 5 || m == 8 || m == 10) ? 30 : 31))
#endif
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