diff --git a/pandas/tests/tseries/test_resample.py b/pandas/tests/tseries/test_resample.py
index 1535bd665fe8b..56953dc378965 100755
--- a/pandas/tests/tseries/test_resample.py
+++ b/pandas/tests/tseries/test_resample.py
@@ -2670,6 +2670,11 @@ def test_resample_weekly_bug_1726(self):
         # it works!
         df.resample('W-MON', closed='left', label='left').first()
 
+    def test_resample_tz_aware_bug_15549(self):
+        index = pd.DatetimeIndex([1450137600000000000, 1474059600000000000], tz='UTC').tz_convert('America/Chicago')
+        df = pd.DataFrame([1, 2], index=index)
+        df.resample('12h', closed='right', label='right').last().ffill()
+
     def test_resample_bms_2752(self):
         # GH2753
         foo = pd.Series(index=pd.bdate_range('20000101', '20000201'))
diff --git a/pandas/tseries/resample.py b/pandas/tseries/resample.py
index 75e550a065fd2..f759cd9613a81 100755
--- a/pandas/tseries/resample.py
+++ b/pandas/tseries/resample.py
@@ -1149,12 +1149,15 @@ def _get_time_bins(self, ax):
             binner = labels = DatetimeIndex(
                 data=[], freq=self.freq, name=ax.name)
             return binner, [], labels
-
+        
+        tz = ax.tz
+        if tz:
+            ax = ax.tz_convert('UTC')
+        
         first, last = ax.min(), ax.max()
         first, last = _get_range_edges(first, last, self.freq,
                                        closed=self.closed,
                                        base=self.base)
-        tz = ax.tz
         # GH #12037
         # use first/last directly instead of call replace() on them
         # because replace() will swallow the nanosecond part
@@ -1163,8 +1166,8 @@ def _get_time_bins(self, ax):
         binner = labels = DatetimeIndex(freq=self.freq,
                                         start=first,
                                         end=last,
-                                        tz=tz,
-                                        name=ax.name)
+                                        tz='UTC',
+                                        name=ax.name).tz_convert(tz)
 
         # a little hack
         trimmed = False