diff --git a/lib/index.js b/lib/index.js
index 1bf8105..3ca69ab 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -34,6 +34,7 @@ const STORE_PATH = Ul.USER_DIR + "/.git-stats"
       , "Fri"
       , "Sat"
       ]
+    , DATE_FORMAT = "MMM D, YYYY"
     ;
 
 // Constructor
@@ -78,7 +79,7 @@ GitStats.record = function (data, callback) {
     // Get stats
     GitStats.get(function (err, stats) {
         stats = stats || {};
-        var day = data.date.format("MMM D, YYYY")
+        var day = data.date.format(DATE_FORMAT)
           , today = stats[day] = Object(stats[day])
           , repo = today[data.url] = Object(today[data.url])
           ;
@@ -113,7 +114,7 @@ GitStats.iterateDays = function (data, callback) {
     data = Ul.merge({
         end: Moment()
       , start: Moment().subtract(1, "years")
-      , format: "MMM D, YYYY"
+      , format: DATE_FORMAT
     }, data);
 
     var start = data.start
@@ -121,7 +122,7 @@ GitStats.iterateDays = function (data, callback) {
       , cDay = null
       ;
 
-    while (!start.isAfter(end)) {
+    while (start.format(DATE_FORMAT) !== end.format(DATE_FORMAT)) {
         cDay = start.format(data.format);
         callback(cDay, start);
         start.add(1, "days")