private async Task SendAlerts()
        {
            var nextAlarm = Utilities.CalculateSeconds(DateTime.Now);
            var users     = userPreferences.GetUsers(currentTime, nextAlarm);

            foreach (UserTeam ut in users)
            {
                AuthResponseDTO teamInfo = credentials.GetValue(ut.teamID);
                await slackAPI.SendMessage(teamInfo.bot.bot_access_token, ut.userID, $"Your alert!");
            }
            currentTime = nextAlarm;
        }