Needing to Check Every Quarter Hour

[menator01]

Glad I could help. Posting changed code I have in case it may help someone else.

import tkinter as tk
import json, requests
from datetime import datetime, timedelta
from time import strftime


class Window:
    def __init__(self, parent):

        # Get location - lat and long
        location = json.loads(requests.get('http://ipinfo.io/json').text)['loc']
        lat, lon = location.split(',')

        # Get sunrise/sunset and format
        sunurl = 'https://api.sunrise-sunset.org/json'
        params = {'lat': lat, 'lon': lon, 'formatted': 0, 'date': 'today'}
        input_format = '%Y-%m-%dT%H:%M:%S+00:00'
        output_format = '%H:%M:%S'
        sunpage = requests.get(sunurl, params).json()

        self.sunrise = sunpage['results']['sunrise']
        self.sunrise = datetime.strptime(self.sunrise, input_format)
        self.sunrise = self.sunrise + timedelta()
        self.sunrise = self.sunrise.strftime(output_format)

        self.sunset = sunpage['results']['sunset']
        self.sunset = datetime.strptime(self.sunset, input_format)
        self.sunset = self.sunset + timedelta()
        self.sunset = self.sunset.strftime(output_format)

        # Helps with grid layout stretching
        parent.columnconfigure(0, weight=1)
        parent.columnconfigure(1, weight=1)

        # Create text label to display header
        time_label = tk.Label(parent, text='Current Local Time: ')
        time_label['relief'] = 'ridge'
        time_label.grid(column=0, row=0, sticky='new')

        # Create text label for displaying clock
        self.time_label = tk.Label(parent)
        self.time_label['relief'] = 'ridge'
        self.time_label.grid(column=1, row=0, sticky='new')

        # Create label that will span two columns for displaying a color background
        self.color_label = tk.Label(parent, width=5)
        self.color_label['relief'] = 'ridge'
        self.color_label.grid(column=0, columnspan=2, row=1, sticky='news')

        # Call the update function
        self.update()

    # Define the update function
    def update(self):

        # Updates the clock display every one second
        self.time_label['text'] = strftime('%H:%M:%S')
        self.time_label.after(1000, self.update)

        # Create a list of the minutes we want to check. This case every 15 minutes
        quarters = [00, 15, 30, 45]

        # Loop through the list and checking it against the current time minute
        # If the current minute is in the minutes list change background and foreground colors
        # of the clock. Colors change back to default after one minute
        minute = int(self.time_label['text'][3:5])
        if minute in quarters:
            self.time_label['fg'] = 'lime'
            self.time_label['bg'] = 'darkgreen'
        else:
            self.time_label['fg'] = 'black'
            self.time_label['bg'] = 'gray96'

        # Check the current time label against the sunrise and sunset time from
        # sunrise-sunset.org If the time is between sunrise and sunset, the background color is yellow.
        # If the time is between sunset and sunrise, the background color is navy.
        if self.time_label['text'] >= self.sunrise and self.time_label['text'] <= self.sunset:
            self.color_label['bg'] = 'yellow'
        else:
            self.color_label['bg'] = 'navy'


def main():
    root = tk.Tk()
    root['padx'] = 10
    root['pady'] = 6
    Window(root)
    root.mainloop()

if __name__ == '__main__':
    main()