/// <summary>
 /// End of year
 /// </summary>
 /// <param name="ldt"></param>
 /// <param name="timeZoneOffset"></param>
 /// <returns></returns>
 public static LocalDateTime EndOfYear(this LocalDateTime ldt, int timeZoneOffset) => ldt.LastDayOfYear().EndOfDay(timeZoneOffset);
 /// <summary>
 /// End of year
 /// </summary>
 /// <param name="ldt"></param>
 /// <returns></returns>
 public static LocalDateTime EndOfYear(this LocalDateTime ldt) => ldt.LastDayOfYear().EndOfDay();