diff --git a/gcalendarsync.js b/gcalendarsync.js
index 196e04a..632182d 100644
--- a/gcalendarsync.js
+++ b/gcalendarsync.js
@@ -9,8 +9,10 @@ var calendarId = '<your-calendar-id>@group.calendar.google.com';
 
 // Set the beginning and end dates that should be synced. beginDate can be set to Date() to use
 // today. The numbers are year, month, date, where month is 0 for Jan through 11 for Dec.
-var beginDate = new Date(1970, 0, 1);  // Default to Jan 1, 1970
-var endDate = new Date(2500, 0, 1);  // Default to Jan 1, 2500
+// When no time is given, it will be set at 00:00:00
+// (optional) Time can be set like new Date(1970, 0, 3, 22, 15) -> Jan 3, 1970, 22:15.
+var beginDate = new Date(1970, 0, 1);  // Default to Jan 1, 1970, 00:00:00
+var endDate = new Date(2500, 0, 1);  // Default to Jan 1, 2500, 00:00:00
 
 // Date format to use in the spreadsheet.
 var dateFormat = 'M/d/yyyy H:mm';