diff --git a/src/gswe-moment.c b/src/gswe-moment.c
index 05e16a4..9dc37d6 100644
--- a/src/gswe-moment.c
+++ b/src/gswe-moment.c
@@ -523,7 +523,7 @@ gswe_moment_calculate_house_positions(GsweMoment *moment, GError **err)
         return;
     }
 
-    jd = gswe_timestamp_get_julian_day(moment->priv->timestamp, err);
+    jd = gswe_timestamp_get_julian_day_et(moment->priv->timestamp, err);
 
     // If Julian Day calculation yields error, we don't do anything. err is
     // already filled with the error message, so let's just return
@@ -679,7 +679,7 @@ gswe_moment_calculate_planet(GsweMoment *moment, GswePlanet planet, GError **err
     }
 
     swe_set_topo(moment->priv->coordinates.longitude, moment->priv->coordinates.latitude, moment->priv->coordinates.altitude);
-    jd = gswe_timestamp_get_julian_day(moment->priv->timestamp, err);
+    jd = gswe_timestamp_get_julian_day_et(moment->priv->timestamp, err);
 
     if (planet_data->planet_info->real_body == FALSE) {
         if (
diff --git a/src/gswe-moon-phase-data.c b/src/gswe-moon-phase-data.c
index e3f02f7..1faabf8 100644
--- a/src/gswe-moon-phase-data.c
+++ b/src/gswe-moon-phase-data.c
@@ -102,7 +102,7 @@ gswe_moon_phase_data_calculate_by_jd(GsweMoonPhaseData *moon_phase_data, gdouble
     gdouble jdb,
             phase_percent;
 
-    jdb = gswe_timestamp_get_julian_day(gswe_full_moon_base_date, err);
+    jdb = gswe_timestamp_get_julian_day_et(gswe_full_moon_base_date, err);
 
     if ((err) && (*err)) {
         return;
@@ -152,7 +152,7 @@ gswe_moon_phase_data_calculate_by_timestamp(GsweMoonPhaseData *moon_phase_data,
 {
     gdouble jd;
 
-    jd = gswe_timestamp_get_julian_day(timestamp, err);
+    jd = gswe_timestamp_get_julian_day_et(timestamp, err);
 
     if (*err) {
         return;
diff --git a/src/gswe-timestamp.c b/src/gswe-timestamp.c
index 2afb3e2..6edcd2e 100644
--- a/src/gswe-timestamp.c
+++ b/src/gswe-timestamp.c
@@ -1056,7 +1056,7 @@ gswe_timestamp_new_from_julian_day(gdouble julian_day)
 {
     GsweTimestamp *timestamp = gswe_timestamp_new();
 
-    gswe_timestamp_set_julian_day(timestamp, julian_day);
+    gswe_timestamp_set_julian_day_et(timestamp, julian_day, NULL);
 
     return timestamp;
 }