TimerInfo

ScheduleStatus.cs

public class ScheduleStatus
{
    public DateTime Last { get; set; }

    public DateTime Next { get; set; }

    public DateTime LastUpdated { get; set; }
}

TimerInfo.cs

public class TimerInfo
{   
    public ScheduleStatus? ScheduleStatus { get; set; }
    
    public bool IsPastDue { get; set; }
}