Few new methods

[IeuanWalker]

Think these extensions would be useful.

The reverse of the current booleans -

• IsNotPublicHoliday
• IsNotBankHoliday
• IsNotWorkingDay

Get an individual holiday.
Currently there is GetHolidaysInDateRange, i have a use case where im checking an individual date at a time, then add the holiday name to the record if there is a holiday.

Let me know what you think of the above, and if all good i'll look at doing a PR

[martinjw]

I think the booleans are easily handled with ! /not in front of the original - also simple negations will simply inflate the number of methods and reduce discoverability.

For your get holiday name, something like this?

            var result = new USAPublicHoliday().GetHolidayForDate(new DateTime(2023, 7, 4));
            Assert.IsNotNull(result);
            var name = result.GetName();
            Assert.AreEqual("Independence Day", name);

Implementation is

        public Holiday GetHolidayForDate(DateTime dt)
        {
            var holidays = PublicHolidaysInformation(dt.Year);
            return holidays.FirstOrDefault(h => h.ObservedDate.Date == dt.Date);
        }

Would be nice to mark the nullable ref type, but it won't work well with .net framework targets