diff --git a/src/algorithms/PVT/libs/rinex_printer.cc b/src/algorithms/PVT/libs/rinex_printer.cc
index 69d678d06..52f764282 100644
--- a/src/algorithms/PVT/libs/rinex_printer.cc
+++ b/src/algorithms/PVT/libs/rinex_printer.cc
@@ -11082,7 +11082,7 @@ boost::posix_time::ptime Rinex_Printer::compute_UTC_time(const Gps_Navigation_Me
     //: idea resolve the ambiguity with the leap second  http://www.colorado.edu/geography/gcraft/notes/gps/gpseow.htm
     const double utc_t = nav_msg.utc_time(nav_msg.d_TOW);
     boost::posix_time::time_duration t = boost::posix_time::milliseconds(static_cast<int64_t>((utc_t + 604800 * static_cast<double>(nav_msg.i_GPS_week)) * 1000));
-    if (nav_msg.i_GPS_week > 512)
+    if (nav_msg.i_GPS_week < 512)
         {
             boost::posix_time::ptime p_time(boost::gregorian::date(2019, 4, 7), t);
             return p_time;
@@ -11116,7 +11116,7 @@ boost::posix_time::ptime Rinex_Printer::compute_GPS_time(const Gps_Ephemeris& ep
     // --??? No time correction here, since it will be done in the RINEX processor
     const double gps_t = obs_time;
     boost::posix_time::time_duration t = boost::posix_time::milliseconds(static_cast<int64_t>((gps_t + 604800 * static_cast<double>(eph.i_GPS_week % 1024)) * 1000));
-    if (eph.i_GPS_week > 512)
+    if (eph.i_GPS_week < 512)
         {
             boost::posix_time::ptime p_time(boost::gregorian::date(2019, 4, 7), t);
             return p_time;
@@ -11137,7 +11137,7 @@ boost::posix_time::ptime Rinex_Printer::compute_GPS_time(const Gps_CNAV_Ephemeri
     // --??? No time correction here, since it will be done in the RINEX processor
     const double gps_t = obs_time;
     boost::posix_time::time_duration t = boost::posix_time::milliseconds(static_cast<int64_t>((gps_t + 604800 * static_cast<double>(eph.i_GPS_week % 1024)) * 1000));
-    if (eph.i_GPS_week > 512)
+    if (eph.i_GPS_week < 512)
         {
             boost::posix_time::ptime p_time(boost::gregorian::date(2019, 4, 7), t);
             return p_time;