Changed configuration of first run time for health check notifier from a time string to a cron expression.

src/Umbraco.Core/DateTimeExtensions.cs

@@ -43,42 +43,5 @@ namespace Umbraco.Core
             Minute,
             Second
         }
-
-        /// <summary>
-        /// Calculates the number of minutes from a date time, on a rolling daily basis (so if
-        /// date time is before the time, calculate onto next day).
-        /// </summary>
-        /// <param name="fromDateTime">Date to start from</param>
-        /// <param name="scheduledTime">Time to compare against (in Hmm form, e.g. 330, 2200)</param>
-        /// <returns></returns>
-        public static int PeriodicMinutesFrom(this DateTime fromDateTime, string scheduledTime)
-        {
-            // Ensure time provided is 4 digits long
-            if (scheduledTime.Length == 3)
-            {
-                scheduledTime = "0" + scheduledTime;
-            }
-
-            var scheduledHour = int.Parse(scheduledTime.Substring(0, 2));
-            var scheduledMinute = int.Parse(scheduledTime.Substring(2));
-
-            DateTime scheduledDateTime;
-            if (IsScheduledInRemainingDay(fromDateTime, scheduledHour, scheduledMinute))
-            {
-                scheduledDateTime = new DateTime(fromDateTime.Year, fromDateTime.Month, fromDateTime.Day, scheduledHour, scheduledMinute, 0);
-            }
-            else
-            {
-                var nextDay = fromDateTime.AddDays(1);
-                scheduledDateTime = new DateTime(nextDay.Year, nextDay.Month, nextDay.Day, scheduledHour, scheduledMinute, 0);
-            }
-
-            return (int)(scheduledDateTime - fromDateTime).TotalMinutes;
-        }
-
-        private static bool IsScheduledInRemainingDay(DateTime fromDateTime, int scheduledHour, int scheduledMinute)
-        {
-            return scheduledHour > fromDateTime.Hour || (scheduledHour == fromDateTime.Hour && scheduledMinute >= fromDateTime.Minute);
-        }
     }
 }