void MTime::UTCToTzSpecificLocal(int tzh)
{
TIME_ZONE_INFORMATION tzInfo;
if (IsLocal()) LocalToUTC();
memset(&tzInfo, 0, sizeof(TIME_ZONE_INFORMATION));
if (tzh > 24) tzh = 24;
if (tzh < -24)tzh = -24;
GetTimeZoneInformation(&tzInfo);
tzInfo.Bias = tzh * 30i64;
UTCToTzSpecificLocal(&tzInfo);
}
int MoonPhase(int date, int time)
{
int utcd, utct;
int y, m, d;
double jd, mp;
/* Convert from local to UTC */
LocalToUTC(date, time, &utcd, &utct);
/* Convert from Remind representation to year/mon/day */
FromJulian(utcd, &y, &m, &d);
/* Convert to a true Julian date -- sorry for the name clashes! */
jd = jtime(y, m, d, (utct / 60), (utct % 60), 0);
/* Calculate moon phase */
mp = 360.0 * phase(jd, NULL, NULL, NULL, NULL, NULL, NULL);
return (int) mp;
}
void HuntPhase(int startdate, int starttim, int phas, int *date, int *time)
{
int utcd, utct;
int y, m, d;
int h, min, s;
int d1, t1;
double k1, k2, jd, jdorig;
double nt1, nt2;
/* Convert from local to UTC */
LocalToUTC(startdate, starttim, &utcd, &utct);
/* Convert from Remind representation to year/mon/day */
FromJulian(utcd, &y, &m, &d);
/* Convert to a true Julian date -- sorry for the name clashes! */
jdorig = jtime(y, m, d, (utct / 60), (utct % 60), 0);
jd = jdorig - 45.0;
nt1 = meanphase(jd, 0.0, &k1);
while(1) {
jd += synmonth;
nt2 = meanphase(jd, 0.0, &k2);
if (nt1 <= jdorig && nt2 > jdorig) break;
nt1 = nt2;
k1 = k2;
}
jd = truephase(k1, phas/4.0);
if (jd < jdorig) jd = truephase(k2, phas/4.0);
/* Convert back to Remind format */
jyear(jd, &y, &m, &d);
jhms(jd, &h, &min, &s);
d1 = Julian(y, m, d);
t1 = h*60 + min;
UTCToLocal(d1, t1, date, time);
}
