private void AddGroupMeditationItem(DateTime dt, double startTime, double duration, int InitiateTypeID)
        {
            GroupMeditation gm = new GroupMeditation();

            gm.InitiateTypeID = InitiateTypeID;
            gm.StartDateTime  = dt.Date.AddHours(startTime);
            gm.EndDateTime    = gm.StartDateTime.AddHours(duration);

            if (!_entities.GroupMeditations.Any(a => a.StartDateTime == gm.StartDateTime))
            {
                _entities.AddToGroupMeditations(gm);
                _entities.SaveChanges();
            }
        }