diff --git a/pomodoroprompt.py b/pomodoroprompt.py
index 051490a..1cec777 100644
--- a/pomodoroprompt.py
+++ b/pomodoroprompt.py
@@ -97,7 +97,7 @@ def prepare_file(utc_start, ext='csv', daily=False):
         os.makedirs(logpath)
     # We consider 3am the switchover to a new day, so we skip extra math
     # and use Pacific time to get three hours later than our Eastern time.
-    logpath_tz = timezone('US/Pacific')
+    logpath_tz = timezone('America/Los_Angeles')
     logpath_date = utc_start.astimezone(logpath_tz)
     timelog_path = logpath + '/' + str(logpath_date.year);
     if (daily):