#!/usr/bin/env python3

import datetime
import time
import zoneinfo

def main():
    today = datetime.date.today()

    current_weekday = today.weekday()
    if current_weekday == 6:
        days_to_next_sunday = 6
    else:
        days_to_next_sunday = 6 - current_weekday

    delta = datetime.timedelta(days=days_to_next_sunday)

    noon = datetime.time(hour=12)

    timezone = datetime.datetime.now().astimezone().tzinfo
    next_sunday_noon = datetime.datetime.combine(
        today + delta,
        noon,
        tzinfo=timezone
    )

    print(next_sunday_noon.isoformat())

    return 0

if __name__ == "__main__":
    main()