Needing to Check Every Quarter Hour

[bill_z]

New guy here still struggling with time issues.

I'm trying to write a python3 program for my Raspberry PI 3 model B+ that will turn on a LED light every quarter of an hour for a minute and the brightness of the LED will be brighter between dawn and dusk (daylight hours).

With help from this forum, I have this program that tells me sunrise and sunset times in my time zone, but, I can't figure out how to compare current time to sunrise and sunset.

Running during the day should result in LED = 255.

Checking for quarter hour seems to work.

Please look over my code and tell me what I'm assuming or doing wrong.

""" Turn on LED every quarter hour where LED brightness is brighter between sunrise and sunset

"""

import requests
from datetime import datetime,timedelta
from zoneinfo import ZoneInfo
from array import *
 
latitude = 28.262222
longitude = -96.747165
target_timezone = "America/Chicago"
timezone_offset = ZoneInfo(target_timezone).utcoffset(datetime.now())
quarter_hour = array ('d',[00,15,30,45])
day_brightnes = 255
night_brightnes = 125
 
url = "https://api.sunrise-sunset.org/json"
params = {
        "lat": latitude,
        "lng": longitude,
        "formatted": 0,
        "date": "today",
        }
 
input_format   = "%Y-%m-%dT%H:%M:%S+00:00"
output_format  = "%H:%M:%S"
 
resp_json = requests.get(url, params=params).json()
sunrise_date_time  = resp_json["results"]["sunrise"]
sunset_date_time  = resp_json["results"]["sunset"]
LED = night_brightnes
if (sunrise_date_time < str(datetime.now()) < sunset_date_time):
    LED = day_brightnes
print(f"LED brightness is {LED}")

print(f"Current time is  {datetime.now()} local")
date_time = datetime.now()
time = date_time.time()
min = int(time.minute)
print(f"Current minute is  {min} local")
if min in quarter_hour:
    print(f"It is a quarter hour  {min} local")

Output:
>>> %Run check_quarter_hour.py
LED brightness is 125
Current time is  2022-02-08 10:13:54.216009 local
Current minute is  13 local
>>>