def testSunEquation_standardValue_calculateCorrectly():
date = dt.datetime(2019, 1, 1)
DEC = -23.03993184124207
EOT = -0.053431595269049836
declination, equationOfTime = algorithms.sunEquation(date)
assert DEC == declination, "Declination calculations failed!"
assert EOT == equationOfTime, "EoT calculations failed!"
def computeIsha(date, angle, latitude, thuhr):
"""
Calculates the time of Isha prayer.
:param date: datetime.datetime, representing the Gregorian date.
:param angle: Number, the angle convention used to calculated Isha.
:param latitude: Number, the latitude of the point of interest in degrees.
:param thuhr: datetime.datetime, Thuhr prayer on the SAME day.
:return: datetime.datetime, the datetime of Isha.
"""
declination, _ = sunEquation(date)
fajr = thuhr + horizonEquation(angle, latitude, declination)
return fajr
def computeAsr(date, shadowLength, latitude, thuhr):
"""
Calculates the time of Asr prayer.
:param date: datetime.datetime, representing the Gregorian date.
:param shadowLength: Number, the multiplier for the length of an object's shadow.
:param latitude: Number, the latitude of the point of interest in degrees.
:param thuhr: datetime.datetime, Thuhr prayer on the SAME day.
:return: datetime.datetime, the time of Asr prayer.
"""
declination, _ = sunEquation(date)
asr = thuhr + asrEquation(shadowLength, latitude, declination)
return asr
def computeThuhr(date, longitude, timeZone):
"""
Calculates the time of Thuhr prayer.
:param date: datetime.datetime, representing the Gregorian date.
:param longitude: Number, the longitude of the point of interest in degrees.
:param timeZone: Number, the timezone of the point of interest in degrees.
:return: datetime.datetime, the time of Thuhr prayer.
"""
_, equationOfTime = sunEquation(date)
t = 12 + timeZone - (longitude/15 + equationOfTime)
thuhr = date + dt.timedelta(hours=t)
return thuhr