diff --git a/navdump.cc b/navdump.cc
index 989a378..8d86ef2 100644
--- a/navdump.cc
+++ b/navdump.cc
@@ -631,8 +631,8 @@ try
       etstamp();
       
       auto latlonh = ecefToWGS84(nmm.op().x(), nmm.op().y(), nmm.op().z());
-      cout<<std::fixed<<"ECEF "<<nmm.op().x()<<", "<<nmm.op().y()<<", "<<nmm.op().z();
-      cout<<", WGS84 lon "<< 180*std::get<1>(latlonh)/M_PI
+      cout<<std::fixed<<"ECEF "<<nmm.op().x()<<" "<<nmm.op().y()<<" "<<nmm.op().z();
+      cout<<" WGS84 lon "<< 180*std::get<1>(latlonh)/M_PI
 	  <<" lat "<< 180*std::get<0>(latlonh)/M_PI
 	  <<" elev "<< std::get<2>(latlonh) << " acc "<<nmm.op().acc()<<" m "<<endl;
       g_ourpos = Point(nmm.op().x(), nmm.op().y(), nmm.op().z());
diff --git a/navmon.cc b/navmon.cc
index 001e77c..e2c077f 100644
--- a/navmon.cc
+++ b/navmon.cc
@@ -136,7 +136,7 @@ std::string humanTime(time_t t)
   }
 
   char buffer[80];
-  strftime(buffer, sizeof(buffer), "%a, %d %b %Y %H:%M:%S %z", &tm);
+  strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S %z", &tm);
   // strftime(buffer, sizeof(buffer), "%F %T ", &tm);
   return buffer;
 }
@@ -147,7 +147,7 @@ std::string humanTime(time_t t, uint32_t nanoseconds)
   gmtime_r(&t, &tm);
 
   char buffer[80];
-  std::string fmt = "%a, %d %b %Y %H:%M:"+fmt::sprintf("%07.04f", tm.tm_sec + nanoseconds/1000000000.0) +" %z";
+  std::string fmt = "%Y-%m-%d %H:%M:"+fmt::sprintf("%07.04f", tm.tm_sec + nanoseconds/1000000000.0) +" %z";
   
   strftime(buffer, sizeof(buffer), fmt.c_str(), &tm);
   return buffer;
diff --git a/navparse.cc b/navparse.cc
index a6e535f..e38fdde 100644
--- a/navparse.cc
+++ b/navparse.cc
@@ -480,7 +480,7 @@ std::string humanTime(int gnssid, int wn, int tow)
   gmtime_r(&t, &tm);
 
   char buffer[80];
-  strftime(buffer, sizeof(buffer), "%a, %d %b %Y %T %z", &tm);
+  strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S %z", &tm);
   return buffer;
 }
 char getGNSSChar(int id)