diff --git a/packages/modules/electricity_tariffs/fixed_hours/config.py b/packages/modules/electricity_tariffs/fixed_hours/config.py
index 37587bf12b..e9c15419b6 100644
--- a/packages/modules/electricity_tariffs/fixed_hours/config.py
+++ b/packages/modules/electricity_tariffs/fixed_hours/config.py
@@ -12,7 +12,7 @@ def __init__(self, default_price: Optional[float] = None, tariffs: List[Dict[str
                 "name": "high_tariff",
                 "price": 0.20,
                 "active_times": {
-                    "quarters": [1, 2, 3, 4],  # applicable quarters
+                    "dates": [("01-01", "31-03"), ("01-07", "30-09")],  # applicable date ranges (day-month)
                     "times": [("08:00", "12:00"), ("18:00", "22:00")]  # active times during the day
                 }
             },
@@ -20,7 +20,7 @@ def __init__(self, default_price: Optional[float] = None, tariffs: List[Dict[str
                 "name": "low_tariff",
                 "price": 0.05,
                 "active_times": {
-                    "quarters": [1, 2, 3, 4],  # applicable quarters
+                    "dates": [("01-04", "30-06"), ("01-10", "31-12")],  # applicable date ranges (day-month)
                     "times": [("00:00", "06:00"), ("22:00", "23:59")]  # active times during the day
                 }
             }
diff --git a/packages/modules/electricity_tariffs/fixed_hours/tariff.py b/packages/modules/electricity_tariffs/fixed_hours/tariff.py
index f4edb9f3d7..0a73ccb125 100644
--- a/packages/modules/electricity_tariffs/fixed_hours/tariff.py
+++ b/packages/modules/electricity_tariffs/fixed_hours/tariff.py
@@ -2,6 +2,7 @@
 import logging
 import datetime
 import time
+from typing import List, Tuple, Dict
 
 from modules.electricity_tariffs.fixed_hours.config import FixedHoursTariff, FixedHoursTariffConfiguration
 from modules.common.abstract_device import DeviceDescriptor
@@ -11,39 +12,52 @@
 log = logging.getLogger(__name__)
 
 
-def to_time(time_str):
+def to_time(time_str: str) -> datetime.time:
+    if time_str == "24:00":
+        return datetime.time(23, 59, 59)
     return datetime.datetime.strptime(time_str, "%H:%M").time()
 
 
-def validate_tariff_times(config):
-    time_slots = []
+def to_date(date_str: str, time_slot: datetime.datetime) -> datetime.date:
+    date = datetime.datetime.strptime(date_str, "%d-%m").date().replace(year=datetime.datetime.now().year)
+    if date.year < time_slot.year:  # Beim Jahreswechsel das korrekte Jahr setzen
+        date = date.replace(year=time_slot.year)
+    return date
+
+
+def validate_tariff_times(config: FixedHoursTariffConfiguration) -> None:
+    time_slots: List[Tuple[datetime.time, datetime.time, List[Tuple[str, str]]]] = []
     for tariff in config.tariffs:
         for start, end in tariff["active_times"]["times"]:
             start_time = to_time(start)
             end_time = to_time(end)
-            for existing_start, existing_end in time_slots:
-                if (start_time < existing_end and end_time > existing_start):
+            for existing_start, existing_end, existing_dates in time_slots:
+                if (start_time < existing_end and end_time > existing_start and
+                        any(start <= existing_end and end >= existing_start for start, end in existing_dates)):
                     raise ValueError(f"Overlapping time window detected: {start} - {end} in tariff '{tariff['name']}'")
-            time_slots.append((start_time, end_time))
+            time_slots.append((start_time, end_time, tariff["active_times"]["dates"]))
 
 
-def fetch(config: FixedHoursTariffConfiguration) -> None:
+def fetch(config: FixedHoursTariffConfiguration) -> TariffState:
     validate_tariff_times(config)
 
     current_time = datetime.datetime.now().replace(minute=0, second=0, microsecond=0)
-    prices = {}
+    prices: Dict[str, float] = {}
 
     for i in range(24):  # get prices for the next 24 hours
         time_slot = current_time + datetime.timedelta(hours=i)
         epoch_time = int(time.mktime(time_slot.timetuple()))
-        quarter = (current_time.month - 1) // 3 + 1
-        price = config.default_price/1000
+        price = config.default_price / 1000
 
         for tariff in config.tariffs:
             active_times = [(to_time(start), to_time(end)) for start, end in tariff["active_times"]["times"]]
+            active_dates = [
+                (to_date(start, time_slot), to_date(end, time_slot))
+                for start, end in tariff["active_times"]["dates"]
+            ]
             if (any(start <= time_slot.time() < end for start, end in active_times) and
-                    quarter in tariff["active_times"]["quarters"]):
-                price = tariff["price"]/1000
+                    any(start <= time_slot.date() <= end for start, end in active_dates)):
+                price = tariff["price"] / 1000
                 break  # Break since we found a matching tariff
 
         prices[str(epoch_time)] = price
@@ -52,7 +66,7 @@ def fetch(config: FixedHoursTariffConfiguration) -> None:
 
 
 def create_electricity_tariff(config: FixedHoursTariff):
-    def updater():
+    def updater() -> TariffState:
         return fetch(config.configuration)
     return updater