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BusinessDayQ[date]

returns True if the date is a business day and returns False otherwise.

Details and Options
Details and Options Details and Options
Examples  
Basic Examples  
Options  
CalendarType  
HolidayCalendar  
Applications  
Properties & Relations  
See Also
Related Guides
Related Links
History
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BusinessDayQ

BusinessDayQ[date]

returns True if the date is a business day and returns False otherwise.

Details and Options

  • DateObject[…]date object
    {y,m,d}year, month, day
    {y,m}the first day of the specified month
    {y}January 1 of the year y
    "string"date as a string ("Jan. 1, 2000")
    {y,m,d,h,m,s}precise time
    timeabsolute time specification
  • BusinessDayQ takes the following options:
  • CalendarType Automaticcalendar in which the date has been specified
    HolidayCalendar {"UnitedStates","Default"}holiday schedule and subspecification for the business day and holiday computations
  • In the Jewish calendar, the weekdays are Sunday through Thursday.

Examples

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Basic Examples  (3)

Determine if today is a business day:

Wolfram Language code: BusinessDayQ[Today]

Determine if July 4 was a business day in Brazil in 2022:

Wolfram Language code: BusinessDayQ[DateObject[{2022, 7, 4}, "Day"], HolidayCalendar -> "Brazil"]

July 4 is a holiday in the US:

Wolfram Language code: BusinessDayQ[DateObject[{2022, 7, 4}, "Day"], HolidayCalendar -> "UnitedStates"]

Options  (4)

CalendarType  (2)

Check whether a date is a business day on different calendars:

Wolfram Language code: BusinessDayQ[{2021, 1, 1}, CalendarType -> "Gregorian"]
Wolfram Language code: BusinessDayQ[{2021, 1, 1}, CalendarType -> "Jewish"]

Business days are determined by the calendar type associated with the date. For example, Friday and Saturday are considered weekend dates on the Jewish calendar:

Wolfram Language code: BusinessDayQ[{2022, 3, 18}, CalendarType -> "Gregorian"]
Wolfram Language code: DayName[{2022, 3, 18}]
Wolfram Language code: CalendarConvert[DateObject[{2022, 3, 18}], "Jewish"]
Wolfram Language code: BusinessDayQ[{5782, 13, 15}, CalendarType -> "Jewish"]

HolidayCalendar  (2)

Determine if Monday, April 6, 2015, was a business day in Hong Kong:

Wolfram Language code: BusinessDayQ[{2015, 4, 6}, HolidayCalendar -> "HongKong"]

Different markets within a country may have different holiday schedules:

Wolfram Language code: HolidayCalendarData["UnitedStates"]
Wolfram Language code: BusinessDayQ[DateObject[{2012, 10, 30}], HolidayCalendar -> {"UnitedStates", "NYSE"}]
Wolfram Language code: BusinessDayQ[DateObject[{2012, 10, 30}], HolidayCalendar -> {"UnitedStates", "NASDAQ"}]

Applications  (1)

Find the countries that had Easter Monday off in 2022:

Wolfram Language code: HolidayCalendarData[]
Wolfram Language code: Select[HolidayCalendarData[], !BusinessDayQ[DateObject[{2022, 4, 15}], CalendarType -> "Gregorian", HolidayCalendar -> #]&]

Properties & Relations  (1)

BusinessDayQ is equivalent to DayMatchQ[…,"BusinessDay"]:

Wolfram Language code: BusinessDayQ[Today]
Wolfram Language code: DayMatchQ[Today, "BusinessDay"]
Wolfram Research (2012), BusinessDayQ, Wolfram Language function, https://reference.wolfram.com/language/ref/BusinessDayQ.html (updated 2014).

Text

Wolfram Research (2012), BusinessDayQ, Wolfram Language function, https://reference.wolfram.com/language/ref/BusinessDayQ.html (updated 2014).

CMS

Wolfram Language. 2012. "BusinessDayQ." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2014. https://reference.wolfram.com/language/ref/BusinessDayQ.html.

APA

Wolfram Language. (2012). BusinessDayQ. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/BusinessDayQ.html

BibTeX

@misc{reference.wolfram_2026_businessdayq, author="Wolfram Research", title="{BusinessDayQ}", year="2014", howpublished="\url{https://reference.wolfram.com/language/ref/BusinessDayQ.html}", note=[Accessed: 12-June-2026]}

BibLaTeX

@online{reference.wolfram_2026_businessdayq, organization={Wolfram Research}, title={BusinessDayQ}, year={2014}, url={https://reference.wolfram.com/language/ref/BusinessDayQ.html}, note=[Accessed: 12-June-2026]}