diff --git a/geomagio/pcdcp/PCDCPFactory.py b/geomagio/pcdcp/PCDCPFactory.py
index c5fb2c0f45bd9413647b50ef437d4009b143d645..7f30568c296530f735fc00e382345f9425207af0 100644
--- a/geomagio/pcdcp/PCDCPFactory.py
+++ b/geomagio/pcdcp/PCDCPFactory.py
@@ -144,8 +144,9 @@ class PCDCPFactory(TimeseriesFactory):
         endHour = str(int(ending/60.0))
         endMinute = str(int(ending%60.0))
 
-        start = year + yearday + "T" + startHour + ":" + startMinute + "00.0"
-        end = year + yearday + "T" + endHour + ":" + endMinute + "00.0"
+        start = year + yearday + "T" + startHour + ":" + \
+                startMinute + ":" + "00.0"
+        end = year + yearday + "T" + endHour + ":" + endMinute + ":" + "00.0"
 
         starttime = obspy.core.UTCDateTime(start)
         endtime = obspy.core.UTCDateTime(end)