Day/Night astro object - Printable Version

Code:
time = os.time()
latitude = 52.879110 --Site Coordinates
longitude = 23.128610 --Site Coordinates
sunrise, sunset = rscalc(latitude, longitude)

sunrise_hour = math.floor(sunrise / 60)
sunrise_minute = sunrise % 60

sunset_hour = math.floor(sunset / 60)
sunset_minute = sunset % 60

sunrise_text = string.format('%02d:%02d', sunrise_hour, sunrise_minute)
sunset_text = string.format('%02d:%02d', sunset_hour, sunset_minute)
Day_Length = sunset - sunrise
Day_Length_hour = math.floor(Day_Length / 60)
Day_Length_minute = Day_Length % 60
Day_Length_text = string.format('%02d:%02d', Day_Length_hour, Day_Length_minute)
grp.update('33/1/20', Day_Length_text) -- Length of the day in text way. Put in your group
--log (Day_Length_hour)
--log (Day_Length_minute)
date = os.date('*t')
now = date.hour * 60 + date.min
OutsideLightOn = sunset + 60 -- Time after one hour after sunset. You can change it...
OutsideLightOff = sunrise - 60 --Time one hour before sunrise. You can change it..
if now > OutsideLightOn then
  OutsideLightTxt = 'Outside Light is On' -- text status of outside lighting
  grp.update('33/1/11', 1) -- Switch On group of outside lighting
  grp.update('33/1/12', OutsideLightTxt) --Lighting status text way
  end
if (now > (OutsideLightOff - 2) and now < OutsideLightOff) then
  OutsideLightTxt = 'Outside Light switched Off'
  --log(now)
  --log(OutsideLightOn)
  --log(OutsideLightOff)
grp.update('33/1/11', 0) -- Switch off outside lighting
  grp.update('33/1/12', OutsideLightTxt) --Text wat status of lighting
end
-- from 0:00 to sunrise
if now < sunrise then
  daynight = 'Before sunrise (Night)'
-- from sunset to 23:59
elseif now > sunset then
  daynight = 'After sunset (Time till midnight)'
else
  daynight = 'Day'
end