Select all dates in May within a given list of dates:

Get all dates within the 8th week of the year:

Get all Wednesdays within a given date interval:

Select any instance of February 4, as well as all Thursdays within the given range:

Make a selection function to find the fourth day of each odd-numbered month:

Apply the function to a specific date range:

Selection criteria are typically reference date elements using Slot expressions but may use any Boolean criteria:

DateSelect extracts element values without converting calendars or changing time zones:

The value of #Day is determined by the calendar associated with the input date:

The value of #Hour is checked without accounting for differences in time zones:

To select dates using a standardized time zone, first use TimeZoneConvert:

DateSelect can be used for scheduling purposes, picking out dates that match a given pattern, such as the first Monday in any given month:

DateSelect[dates,crit] is equivalent to Select[dates,DateValue[#,elem]==value&]

Not all calendars include all elements as selection criteria:

Dates may be converted to a different calendar prior to selection using CalendarConvert:

On the Gregorian calendar, the 13th day of the month is a Friday more frequently than any other day of the week:

Create a criterion for US presidential elections (first Tuesday after the first Monday in November every 4 years):

Use the criterion to find all presidential election days in a 20-year period:

A Gregorian century never begins on a Sunday, regardless of whether it starts on year 1 or year zero: