diff --git a/pomodoro_to_harvest.py b/pomodoro_to_harvest.py
index d535447..7fa57cb 100644
--- a/pomodoro_to_harvest.py
+++ b/pomodoro_to_harvest.py
@@ -11,3 +11,6 @@ timelog["time"] = 30
 # the day we want to associate a time entry with.  PomodoroPrompt saves as UTC.
 timelog["date"] = timelog["started"].dt.tz_convert("US/Pacific").dt.date
 timelog["day_of_week"] = pd.to_datetime(timelog["date"]).dt.day_name()
+
+# Condense duplicate entries by date, summing the minutes spent.
+timelog = timelog.groupby(["date", "description"]).agg({"time": ['sum']})