ThisDate (nuget): Buildable event and holiday calendar by calendar patterns. DateTime extensions. IsWorkday(), AddWorkdays(), time rounding, IsLastWeekMonth(), get the 3rd Thursday of November (US Thanksgiving), IsDayOff(),  IsBetweenEqual(DateTime, DateTime), IsLeapYear(), IsNthDayOfWeek(), IsLastDayOfYear() and more.
Keywords: ThisDate|Calendar|Date|Time|DateTime|Daily|Weekly|Monthly|Yearly|AddWorkdays|IsWorkday|EventsOnDate|Holidays