diff --git a/src/gcal-event.c b/src/gcal-event.c
index f2f96233..6e6b27a8 100644
--- a/src/gcal-event.c
+++ b/src/gcal-event.c
@@ -190,36 +190,6 @@ gcal_event_update_uid_internal (GcalEvent *self)
   g_object_notify (G_OBJECT (self), "uid");
 }
 
-static gint
-get_trigger_minutes (GcalEvent          *self,
-                     ECalComponentAlarm *alarm)
-{
-  ECalComponentAlarmTrigger trigger;
-  GDateTime *alarm_dt;
-  gint diff;
-
-  e_cal_component_alarm_get_trigger (alarm, &trigger);
-
-  /*
-   * We only support alarms relative to the start date, and solely
-   * ignore whetever different it may be.
-   */
-  if (trigger.type != E_CAL_COMPONENT_ALARM_TRIGGER_RELATIVE_START)
-    return -1;
-
-  alarm_dt = g_date_time_add_full (self->dt_start,
-                                   0,
-                                   0,
-                                   - (trigger.u.rel_duration.days + trigger.u.rel_duration.weeks * 7),
-                                   - trigger.u.rel_duration.hours,
-                                   - trigger.u.rel_duration.minutes,
-                                   - trigger.u.rel_duration.seconds);
-
-  diff = g_date_time_difference (self->dt_start, alarm_dt) / G_TIME_SPAN_MINUTE;
-
-  return diff;
-}
-
 static void
 load_alarms (GcalEvent *self)
 {
@@ -233,7 +203,7 @@ load_alarms (GcalEvent *self)
       gint trigger_minutes;
 
       alarm = e_cal_component_get_alarm (self->component, l->data);
-      trigger_minutes = get_trigger_minutes (self, alarm);
+      trigger_minutes = get_alarm_trigger_minutes (self, alarm);
 
       /* We only support a single alarm for a given time */
       if (!g_hash_table_contains (self->alarms, GINT_TO_POINTER (trigger_minutes)))
@@ -940,7 +910,7 @@ gcal_event_get_alarms (GcalEvent *self)
       gint trigger_minutes;
 
       alarm = e_cal_component_get_alarm (self->component, l->data);
-      trigger_minutes = get_trigger_minutes (self, alarm);
+      trigger_minutes = get_alarm_trigger_minutes (self, alarm);
 
       /* We only support a single alarm for a given time */
       if (!g_hash_table_contains (tmp, GINT_TO_POINTER (trigger_minutes)))
diff --git a/src/gcal-utils.c b/src/gcal-utils.c
index 9b664371..47a5ee15 100644
--- a/src/gcal-utils.c
+++ b/src/gcal-utils.c
@@ -809,3 +809,35 @@ format_utc_offset (gint64 offset)
   else
     return g_strdup_printf ("%s%02i%02i", sign, hours, minutes);
 }
+
+gint
+get_alarm_trigger_minutes (GcalEvent          *event,
+                           ECalComponentAlarm *alarm)
+{
+  ECalComponentAlarmTrigger trigger;
+  GDateTime *alarm_dt;
+  gint diff;
+
+  e_cal_component_alarm_get_trigger (alarm, &trigger);
+
+  /*
+   * We only support alarms relative to the start date, and solely
+   * ignore whetever different it may be.
+   */
+  if (trigger.type != E_CAL_COMPONENT_ALARM_TRIGGER_RELATIVE_START)
+    return -1;
+
+  alarm_dt = g_date_time_add_full (gcal_event_get_date_start (event),
+                                   0,
+                                   0,
+                                   - (trigger.u.rel_duration.days + trigger.u.rel_duration.weeks * 7),
+                                   - trigger.u.rel_duration.hours,
+                                   - trigger.u.rel_duration.minutes,
+                                   - trigger.u.rel_duration.seconds);
+
+  diff = g_date_time_difference (gcal_event_get_date_start (event), alarm_dt) / G_TIME_SPAN_MINUTE;
+
+  g_clear_pointer (&alarm_dt, g_date_time_unref);
+
+  return diff;
+}
diff --git a/src/gcal-utils.h b/src/gcal-utils.h
index e3c4148d..b8be51ba 100644
--- a/src/gcal-utils.h
+++ b/src/gcal-utils.h
@@ -120,4 +120,7 @@ void            get_source_parent_name_color                    (GcalManager
 
 gchar*          format_utc_offset                               (gint64                 offset);
 
+gint            get_alarm_trigger_minutes                       (GcalEvent             *event,
+                                                                 ECalComponentAlarm    *alarm);
+
 #endif // __GCAL_UTILS_H__