diff --git a/agenda/__init__.py b/agenda/__init__.py
index 169b72f..0db5237 100644
--- a/agenda/__init__.py
+++ b/agenda/__init__.py
@@ -31,10 +31,6 @@ warnings.simplefilter(action="ignore", category=FutureWarning)
 # starlink visible
 
 here = dateutil.tz.tzlocal()
-now = datetime.now()
-today = now.date()
-now_str = now.strftime("%Y-%m-%d_%H:%M")
-now_utc = datetime.now(timezone.utc)
 
 next_us_presidential_election = date(2024, 11, 5)
 next_uk_general_election = date(2024, 5, 2)
@@ -81,7 +77,7 @@ def next_uk_fathers_day(input_date: date) -> date:
     days_until_sunday = (6 - current_day_of_week) % 7
 
     # Calculate the date of the next Sunday
-    next_sunday = today + timedelta(days=days_until_sunday)
+    next_sunday = input_date + timedelta(days=days_until_sunday)
 
     # Calculate the date of Father's Day, which is the third Sunday of June
     fathers_day = date(next_sunday.year, 6, 1) + timedelta(
@@ -89,7 +85,7 @@ def next_uk_fathers_day(input_date: date) -> date:
     )
 
     # Check if Father's Day has already passed this year
-    if today > fathers_day:
+    if input_date > fathers_day:
         # If it has passed, calculate for the next year
         fathers_day = date(fathers_day.year + 1, 6, 1) + timedelta(
             weeks=2, days=next_sunday.weekday()
@@ -98,15 +94,15 @@ def next_uk_fathers_day(input_date: date) -> date:
     return fathers_day
 
 
-def get_next_timezone_transition(tz_name: str) -> date:
+def get_next_timezone_transition(from_dt: datetime, tz_name: str) -> date:
     """Datetime of the next time the clocks change."""
     tz = pytz.timezone(tz_name)
-    dt = next(t for t in tz._utc_transition_times if t > now)
+    dt = next(t for t in tz._utc_transition_times if t > from_dt)
 
     return typing.cast(date, dt.date())
 
 
-def get_next_bank_holiday() -> dict[str, date | str]:
+def get_next_bank_holiday(input_date: date) -> dict[str, date | str]:
     """Date and name of the next UK bank holiday."""
     url = "https://www.gov.uk/bank-holidays.json"
     filename = os.path.join(data_dir, "bank-holidays.json")
@@ -119,7 +115,7 @@ def get_next_bank_holiday() -> dict[str, date | str]:
     next_holiday = None
     for event in events:
         event_date = datetime.strptime(event["date"], "%Y-%m-%d").date()
-        if event_date < today:
+        if event_date < input_date:
             continue
         next_holiday = {"date": event_date, "title": event["title"]}
         break
@@ -129,8 +125,9 @@ def get_next_bank_holiday() -> dict[str, date | str]:
     return next_holiday
 
 
-def get_gbpusd() -> Decimal:
+def get_gbpusd(now: datetime) -> Decimal:
     """Get the current value for GBPUSD, with caching."""
+    now_str = now.strftime("%Y-%m-%d_%H:%M")
     fx_dir = os.path.join(data_dir, "fx")
     existing_data = os.listdir(fx_dir)
     existing = [f for f in existing_data if f.endswith("_GBPUSD.json")]
@@ -161,7 +158,7 @@ def next_economist(input_date: date) -> date:
     # Define the publication day (Thursday) and the day of the week of the input date
     publication_day = 3  # Thursday (0 - Monday, 1 - Tuesday, ..., 6 - Sunday)
     current_day_of_week = input_date.weekday()
-    current_week_number = today.isocalendar().week
+    current_week_number = input_date.isocalendar().week
 
     # Define the list of weeks when The Economist is not published
     non_publication_weeks = [26, 56]
@@ -260,29 +257,30 @@ def stock_markets() -> list[str]:
     return reply
 
 
-def get_us_holiday() -> dict[str, date | str]:
+def get_us_holiday(input_date: date) -> dict[str, date | str]:
     """Date and name of next US holiday."""
-    hols = holidays.UnitedStates(years=[today.year, today.year + 1])
-    next_hol = next(x for x in sorted(hols.items()) if x[0] >= today)
+    hols = holidays.UnitedStates(years=[input_date.year, input_date.year + 1])
+    next_hol = next(x for x in sorted(hols.items()) if x[0] >= input_date)
 
     return {"date": next_hol[0], "title": next_hol[1]}
 
 
-def get_data() -> dict[str, str | object]:
+def get_data(now: datetime) -> dict[str, str | object]:
     """Get data to display on agenda dashboard."""
     rocket_dir = os.path.join(data_dir, "thespacedevs")
+    today = now.date()
 
     reply = {
         "now": now,
-        "gbpusd": get_gbpusd(),
+        "gbpusd": get_gbpusd(now),
         "next_economist": next_economist(today),
-        "bank_holiday": get_next_bank_holiday(),
-        "us_holiday": get_us_holiday(),
+        "bank_holiday": get_next_bank_holiday(today),
+        "us_holiday": get_us_holiday(today),
         # "next_uk_general_election": next_uk_general_election,
         "next_us_presidential_election": next_us_presidential_election,
         "stock_markets": stock_markets(),
-        "uk_clock_change": get_next_timezone_transition("Europe/London"),
-        "us_clock_change": get_next_timezone_transition("America/New_York"),
+        "uk_clock_change": get_next_timezone_transition(now, "Europe/London"),
+        "us_clock_change": get_next_timezone_transition(now, "America/New_York"),
         "mothers_day": next_uk_mothers_day(today),
         "fathers_day": next_uk_fathers_day(today),
         "uk_financial_year_end": uk_financial_year_end(today),