diff --git a/agenda/__init__.py b/agenda/__init__.py
index 217590d..2f7f67b 100644
--- a/agenda/__init__.py
+++ b/agenda/__init__.py
@@ -313,21 +313,13 @@ def critical_mass(start_date: date, limit: int = 12) -> list[Event]:
     events: list[Event] = []
     current_date = start_date
 
-    tz = pytz.timezone("Europe/London")
-    t = time(18, 0)
-
     for _ in range(limit):
         # Calculate the last Friday of the current month
         last_friday = current_date + relativedelta(day=31, weekday=FR(-1))
 
         # Include it in the list only if it's on or after the start_date
         if last_friday >= start_date:
-            events.append(
-                Event(
-                    name="critical_mass",
-                    date=tz.localize(datetime.combine(last_friday, t)),
-                )
-            )
+            events.append(Event(name="critical_mass", date=last_friday))
 
         # Move to the next month
         current_date += relativedelta(months=1)
@@ -344,7 +336,6 @@ def windmill_hill_market_days(start_date: date) -> list[Event]:
     count = 0
 
     tz = pytz.timezone("Europe/London")
-    t = time(10, 0)
 
     while count < 12:
         # Skip months outside of April to December
@@ -362,7 +353,7 @@ def windmill_hill_market_days(start_date: date) -> list[Event]:
                 Event(
                     name="market",
                     title="Windmill Hill Market",
-                    date=tz.localize(datetime.combine(first_saturday, t)),
+                    date=tz.localize(datetime.combine(first_saturday, time(10, 0))),
                 )
             )
             count += 1