EOS/modules/class_sommerzeit.py
NormannK 922042ced1 Update class_sommerzeit.py
initial clean up. translations, minor changes
2024-10-01 07:12:58 +02:00

26 lines
974 B
Python

import datetime
import pytz
def ist_dst_wechsel(tag, timezone="Europe/Berlin"):
"""Checks if Daylight Saving Time (DST) starts or ends on a given day."""
tz = pytz.timezone(timezone)
# Get the current day and the next day
current_day = datetime.datetime(tag.year, tag.month, tag.day)
next_day = current_day + datetime.timedelta(days=1)
# Localize the days in the given timezone
current_day_localized = tz.localize(current_day, is_dst=None)
next_day_localized = tz.localize(next_day, is_dst=None)
# Check if the UTC offsets are different (indicating a DST change)
dst_change = current_day_localized.dst() != next_day_localized.dst()
return dst_change
# # Example usage
# start_date = datetime.datetime(2024, 3, 31) # Date of the DST change
# if ist_dst_wechsel(start_date):
# prediction_hours = 23 # Adjust to 23 hours for DST change days
# else:
# prediction_hours = 24 # Default value for days without DST change