diff --git a/backtesting/best_entry_times.py b/backtesting/best_entry_times.py
index d3aacf2..1d6f51e 100644
--- a/backtesting/best_entry_times.py
+++ b/backtesting/best_entry_times.py
@@ -1,14 +1,14 @@
 from database.backtest import backtest_results
 from datetime import datetime, timedelta
 
-def best_entry_times(lookback_period: int = 10):
-    end_date = datetime.now().replace(hour = 0, minute = 0, second = 0, microsecond = 0)
-    start_date = end_date - timedelta(days = lookback_period)
+def best_entry_times(date: datetime = datetime.now(), days_to_look_back: int = 10):
+    end_date = date.replace(hour = 0, minute = 0, second = 0, microsecond = 0)
+    start_date = end_date - timedelta(days = days_to_look_back)
 
     backtest = backtest_results('SPX', '10 Delta Iron Condor', start_date = start_date, end_date = end_date)
     backtest['Entry Time'] = backtest['Entry Time'].dt.time
 
     profit_by_entry_time = backtest.groupby('Entry Time')['Profit'].sum().reset_index()
 
-    best_entry_times = profit_by_entry_time.sort_values(by='Profit', ascending=False).head(10)
+    best_entry_times = profit_by_entry_time.sort_values(by = 'Profit', ascending = False).head(10)
     return [str(entry_time) for entry_time in best_entry_times['Entry Time'].tolist()]
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diff --git a/test/best_entry_times_test.py b/test/best_entry_times_test.py
index a7f5e5d..1d3d784 100644
--- a/test/best_entry_times_test.py
+++ b/test/best_entry_times_test.py
@@ -2,4 +2,4 @@ from backtesting import best_entry_times
 
 print(best_entry_times())
 
-print(best_entry_times(lookback_period = 30)) # Days.
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+print(best_entry_times(days_to_look_back = 30)) # Days.
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