Argentina

Business days calculator

Count working days in Argentina (no Saturdays, Sundays or holidays)

Between two dates Add business days

Count working days in Argentina (no Saturdays, Sundays or holidays)

This month Next 30 days Until year end +10 business days +15 business days +30 business days

7692

business days

From August 21, 1995 to July 23, 2026

We swapped the dates because “to” was earlier than “from”.

Business day 7692
Weekend 3226
Holidays 376

11295 days in the period

11295

Total days

3226

Weekend

376

Holidays

Holidays in the period

San Martín Day Mon 21 Aug 1995
Cultural Diversity Day Mon 16 Oct 1995
National Sovereignty Day Mon 20 Nov 1995
Immaculate Conception Fri 8 Dec 1995
Christmas Mon 25 Dec 1995
New Year's Day Mon 1 Jan 1996
Carnival Monday Mon 19 Feb 1996
Carnival Tuesday Tue 20 Feb 1996
Remembrance Day Sun 24 Mar 1996
Malvinas Veterans Day Tue 2 Apr 1996
Good Friday Fri 5 Apr 1996
Labor Day Wed 1 May 1996
May Revolution Day Sat 25 May 1996
Güemes Day Mon 17 Jun 1996
Flag Day (Belgrano) Thu 20 Jun 1996
Independence Day Tue 9 Jul 1996
San Martín Day Sat 17 Aug 1996
Cultural Diversity Day Sat 12 Oct 1996
National Sovereignty Day Mon 18 Nov 1996
Immaculate Conception Sun 8 Dec 1996
Christmas Wed 25 Dec 1996
New Year's Day Wed 1 Jan 1997
Carnival Monday Mon 10 Feb 1997
Carnival Tuesday Tue 11 Feb 1997
Remembrance Day Mon 24 Mar 1997
Good Friday Fri 28 Mar 1997
Malvinas Veterans Day Wed 2 Apr 1997
Labor Day Thu 1 May 1997
May Revolution Day Sun 25 May 1997
Güemes Day Mon 16 Jun 1997
Flag Day (Belgrano) Fri 20 Jun 1997
Independence Day Wed 9 Jul 1997
San Martín Day Sun 17 Aug 1997
Cultural Diversity Day Sun 12 Oct 1997
National Sovereignty Day Mon 24 Nov 1997
Immaculate Conception Mon 8 Dec 1997
Christmas Thu 25 Dec 1997
New Year's Day Thu 1 Jan 1998
Carnival Monday Mon 23 Feb 1998
Carnival Tuesday Tue 24 Feb 1998
Remembrance Day Tue 24 Mar 1998
Malvinas Veterans Day Thu 2 Apr 1998
Good Friday Fri 10 Apr 1998
Labor Day Fri 1 May 1998
May Revolution Day Mon 25 May 1998
Güemes Day Mon 15 Jun 1998
Flag Day (Belgrano) Sat 20 Jun 1998
Independence Day Thu 9 Jul 1998
San Martín Day Mon 17 Aug 1998
Cultural Diversity Day Mon 12 Oct 1998
National Sovereignty Day Mon 23 Nov 1998
Immaculate Conception Tue 8 Dec 1998
Christmas Fri 25 Dec 1998
New Year's Day Fri 1 Jan 1999
Carnival Monday Mon 15 Feb 1999
Carnival Tuesday Tue 16 Feb 1999
Remembrance Day Wed 24 Mar 1999
Malvinas Veterans Day Fri 2 Apr 1999
Good Friday Fri 2 Apr 1999
Labor Day Sat 1 May 1999
May Revolution Day Tue 25 May 1999
Flag Day (Belgrano) Sun 20 Jun 1999
Güemes Day Mon 21 Jun 1999
Independence Day Fri 9 Jul 1999
San Martín Day Mon 16 Aug 1999
Cultural Diversity Day Mon 11 Oct 1999
National Sovereignty Day Sat 20 Nov 1999
Immaculate Conception Wed 8 Dec 1999
Christmas Sat 25 Dec 1999
New Year's Day Sat 1 Jan 2000
Carnival Monday Mon 6 Mar 2000
Carnival Tuesday Tue 7 Mar 2000
Remembrance Day Fri 24 Mar 2000
Malvinas Veterans Day Sun 2 Apr 2000
Good Friday Fri 21 Apr 2000
Labor Day Mon 1 May 2000
May Revolution Day Thu 25 May 2000
Güemes Day Sat 17 Jun 2000
Flag Day (Belgrano) Tue 20 Jun 2000
Independence Day Sun 9 Jul 2000
San Martín Day Mon 21 Aug 2000
Cultural Diversity Day Mon 16 Oct 2000
National Sovereignty Day Mon 20 Nov 2000
Immaculate Conception Fri 8 Dec 2000
Christmas Mon 25 Dec 2000
New Year's Day Mon 1 Jan 2001
Carnival Monday Mon 26 Feb 2001
Carnival Tuesday Tue 27 Feb 2001
Remembrance Day Sat 24 Mar 2001
Malvinas Veterans Day Mon 2 Apr 2001
Good Friday Fri 13 Apr 2001
Labor Day Tue 1 May 2001
May Revolution Day Fri 25 May 2001
Güemes Day Sun 17 Jun 2001
Flag Day (Belgrano) Wed 20 Jun 2001
Independence Day Mon 9 Jul 2001
San Martín Day Mon 20 Aug 2001
Cultural Diversity Day Mon 15 Oct 2001
National Sovereignty Day Mon 19 Nov 2001
Immaculate Conception Sat 8 Dec 2001
Christmas Tue 25 Dec 2001
New Year's Day Tue 1 Jan 2002
Carnival Monday Mon 11 Feb 2002
Carnival Tuesday Tue 12 Feb 2002
Remembrance Day Sun 24 Mar 2002
Good Friday Fri 29 Mar 2002
Malvinas Veterans Day Tue 2 Apr 2002
Labor Day Wed 1 May 2002
May Revolution Day Sat 25 May 2002
Güemes Day Mon 17 Jun 2002
Flag Day (Belgrano) Thu 20 Jun 2002
Independence Day Tue 9 Jul 2002
San Martín Day Sat 17 Aug 2002
Cultural Diversity Day Sat 12 Oct 2002
National Sovereignty Day Mon 18 Nov 2002
Immaculate Conception Sun 8 Dec 2002
Christmas Wed 25 Dec 2002
New Year's Day Wed 1 Jan 2003
Carnival Monday Mon 3 Mar 2003
Carnival Tuesday Tue 4 Mar 2003
Remembrance Day Mon 24 Mar 2003
Malvinas Veterans Day Wed 2 Apr 2003
Good Friday Fri 18 Apr 2003
Labor Day Thu 1 May 2003
May Revolution Day Sun 25 May 2003
Güemes Day Mon 16 Jun 2003
Flag Day (Belgrano) Fri 20 Jun 2003
Independence Day Wed 9 Jul 2003
San Martín Day Sun 17 Aug 2003
Cultural Diversity Day Sun 12 Oct 2003
National Sovereignty Day Mon 24 Nov 2003
Immaculate Conception Mon 8 Dec 2003
Christmas Thu 25 Dec 2003
New Year's Day Thu 1 Jan 2004
Carnival Monday Mon 23 Feb 2004
Carnival Tuesday Tue 24 Feb 2004
Remembrance Day Wed 24 Mar 2004
Malvinas Veterans Day Fri 2 Apr 2004
Good Friday Fri 9 Apr 2004
Labor Day Sat 1 May 2004
May Revolution Day Tue 25 May 2004
Flag Day (Belgrano) Sun 20 Jun 2004
Güemes Day Mon 21 Jun 2004
Independence Day Fri 9 Jul 2004
San Martín Day Mon 16 Aug 2004
Cultural Diversity Day Mon 11 Oct 2004
National Sovereignty Day Sat 20 Nov 2004
Immaculate Conception Wed 8 Dec 2004
Christmas Sat 25 Dec 2004
New Year's Day Sat 1 Jan 2005
Carnival Monday Mon 7 Feb 2005
Carnival Tuesday Tue 8 Feb 2005
Remembrance Day Thu 24 Mar 2005
Good Friday Fri 25 Mar 2005
Malvinas Veterans Day Sat 2 Apr 2005
Labor Day Sun 1 May 2005
May Revolution Day Wed 25 May 2005
Güemes Day Mon 20 Jun 2005
Flag Day (Belgrano) Mon 20 Jun 2005
Independence Day Sat 9 Jul 2005
San Martín Day Mon 15 Aug 2005
Cultural Diversity Day Mon 10 Oct 2005
National Sovereignty Day Sun 20 Nov 2005
Immaculate Conception Thu 8 Dec 2005
Christmas Sun 25 Dec 2005
New Year's Day Sun 1 Jan 2006
Carnival Monday Mon 27 Feb 2006
Carnival Tuesday Tue 28 Feb 2006
Remembrance Day Fri 24 Mar 2006
Malvinas Veterans Day Sun 2 Apr 2006
Good Friday Fri 14 Apr 2006
Labor Day Mon 1 May 2006
May Revolution Day Thu 25 May 2006
Güemes Day Sat 17 Jun 2006
Flag Day (Belgrano) Tue 20 Jun 2006
Independence Day Sun 9 Jul 2006
San Martín Day Mon 21 Aug 2006
Cultural Diversity Day Mon 16 Oct 2006
National Sovereignty Day Mon 20 Nov 2006
Immaculate Conception Fri 8 Dec 2006
Christmas Mon 25 Dec 2006
New Year's Day Mon 1 Jan 2007
Carnival Monday Mon 19 Feb 2007
Carnival Tuesday Tue 20 Feb 2007
Remembrance Day Sat 24 Mar 2007
Malvinas Veterans Day Mon 2 Apr 2007
Good Friday Fri 6 Apr 2007
Labor Day Tue 1 May 2007
May Revolution Day Fri 25 May 2007
Güemes Day Sun 17 Jun 2007
Flag Day (Belgrano) Wed 20 Jun 2007
Independence Day Mon 9 Jul 2007
San Martín Day Mon 20 Aug 2007
Cultural Diversity Day Mon 15 Oct 2007
National Sovereignty Day Mon 19 Nov 2007
Immaculate Conception Sat 8 Dec 2007
Christmas Tue 25 Dec 2007
New Year's Day Tue 1 Jan 2008
Carnival Monday Mon 4 Feb 2008
Carnival Tuesday Tue 5 Feb 2008
Good Friday Fri 21 Mar 2008
Remembrance Day Mon 24 Mar 2008
Malvinas Veterans Day Wed 2 Apr 2008
Labor Day Thu 1 May 2008
May Revolution Day Sun 25 May 2008
Güemes Day Mon 16 Jun 2008
Flag Day (Belgrano) Fri 20 Jun 2008
Independence Day Wed 9 Jul 2008
San Martín Day Sun 17 Aug 2008
Cultural Diversity Day Sun 12 Oct 2008
National Sovereignty Day Mon 24 Nov 2008
Immaculate Conception Mon 8 Dec 2008
Christmas Thu 25 Dec 2008
New Year's Day Thu 1 Jan 2009
Carnival Monday Mon 23 Feb 2009
Carnival Tuesday Tue 24 Feb 2009
Remembrance Day Tue 24 Mar 2009
Malvinas Veterans Day Thu 2 Apr 2009
Good Friday Fri 10 Apr 2009
Labor Day Fri 1 May 2009
May Revolution Day Mon 25 May 2009
Güemes Day Mon 15 Jun 2009
Flag Day (Belgrano) Sat 20 Jun 2009
Independence Day Thu 9 Jul 2009
San Martín Day Mon 17 Aug 2009
Cultural Diversity Day Mon 12 Oct 2009
National Sovereignty Day Mon 23 Nov 2009
Immaculate Conception Tue 8 Dec 2009
Christmas Fri 25 Dec 2009
New Year's Day Fri 1 Jan 2010
Carnival Monday Mon 15 Feb 2010
Carnival Tuesday Tue 16 Feb 2010
Remembrance Day Wed 24 Mar 2010
Malvinas Veterans Day Fri 2 Apr 2010
Good Friday Fri 2 Apr 2010
Labor Day Sat 1 May 2010
May Revolution Day Tue 25 May 2010
Flag Day (Belgrano) Sun 20 Jun 2010
Güemes Day Mon 21 Jun 2010
Independence Day Fri 9 Jul 2010
San Martín Day Mon 16 Aug 2010
Cultural Diversity Day Mon 11 Oct 2010
National Sovereignty Day Sat 20 Nov 2010
Immaculate Conception Wed 8 Dec 2010
Christmas Sat 25 Dec 2010
New Year's Day Sat 1 Jan 2011
Carnival Monday Mon 7 Mar 2011
Carnival Tuesday Tue 8 Mar 2011
Remembrance Day Thu 24 Mar 2011
Malvinas Veterans Day Sat 2 Apr 2011
Good Friday Fri 22 Apr 2011
Labor Day Sun 1 May 2011
May Revolution Day Wed 25 May 2011
Güemes Day Mon 20 Jun 2011
Flag Day (Belgrano) Mon 20 Jun 2011
Independence Day Sat 9 Jul 2011
San Martín Day Mon 15 Aug 2011
Cultural Diversity Day Mon 10 Oct 2011
National Sovereignty Day Sun 20 Nov 2011
Immaculate Conception Thu 8 Dec 2011
Christmas Sun 25 Dec 2011
New Year's Day Sun 1 Jan 2012
Carnival Monday Mon 20 Feb 2012
Carnival Tuesday Tue 21 Feb 2012
Remembrance Day Sat 24 Mar 2012
Malvinas Veterans Day Mon 2 Apr 2012
Good Friday Fri 6 Apr 2012
Labor Day Tue 1 May 2012
May Revolution Day Fri 25 May 2012
Güemes Day Sun 17 Jun 2012
Flag Day (Belgrano) Wed 20 Jun 2012
Independence Day Mon 9 Jul 2012
San Martín Day Mon 20 Aug 2012
Cultural Diversity Day Mon 15 Oct 2012
National Sovereignty Day Mon 19 Nov 2012
Immaculate Conception Sat 8 Dec 2012
Christmas Tue 25 Dec 2012
New Year's Day Tue 1 Jan 2013
Carnival Monday Mon 11 Feb 2013
Carnival Tuesday Tue 12 Feb 2013
Remembrance Day Sun 24 Mar 2013
Good Friday Fri 29 Mar 2013
Malvinas Veterans Day Tue 2 Apr 2013
Labor Day Wed 1 May 2013
May Revolution Day Sat 25 May 2013
Güemes Day Mon 17 Jun 2013
Flag Day (Belgrano) Thu 20 Jun 2013
Independence Day Tue 9 Jul 2013
San Martín Day Sat 17 Aug 2013
Cultural Diversity Day Sat 12 Oct 2013
National Sovereignty Day Mon 18 Nov 2013
Immaculate Conception Sun 8 Dec 2013
Christmas Wed 25 Dec 2013
New Year's Day Wed 1 Jan 2014
Carnival Monday Mon 3 Mar 2014
Carnival Tuesday Tue 4 Mar 2014
Remembrance Day Mon 24 Mar 2014
Malvinas Veterans Day Wed 2 Apr 2014
Good Friday Fri 18 Apr 2014
Labor Day Thu 1 May 2014
May Revolution Day Sun 25 May 2014
Güemes Day Mon 16 Jun 2014
Flag Day (Belgrano) Fri 20 Jun 2014
Independence Day Wed 9 Jul 2014
San Martín Day Sun 17 Aug 2014
Cultural Diversity Day Sun 12 Oct 2014
National Sovereignty Day Mon 24 Nov 2014
Immaculate Conception Mon 8 Dec 2014
Christmas Thu 25 Dec 2014
New Year's Day Thu 1 Jan 2015
Carnival Monday Mon 16 Feb 2015
Carnival Tuesday Tue 17 Feb 2015
Remembrance Day Tue 24 Mar 2015
Malvinas Veterans Day Thu 2 Apr 2015
Good Friday Fri 3 Apr 2015
Labor Day Fri 1 May 2015
May Revolution Day Mon 25 May 2015
Güemes Day Mon 15 Jun 2015
Flag Day (Belgrano) Sat 20 Jun 2015
Independence Day Thu 9 Jul 2015
San Martín Day Mon 17 Aug 2015
Cultural Diversity Day Mon 12 Oct 2015
National Sovereignty Day Mon 23 Nov 2015
Immaculate Conception Tue 8 Dec 2015
Christmas Fri 25 Dec 2015
New Year's Day Fri 1 Jan 2016
Carnival Monday Mon 8 Feb 2016
Carnival Tuesday Tue 9 Feb 2016
Remembrance Day Thu 24 Mar 2016
Good Friday Fri 25 Mar 2016
Malvinas Veterans Day Sat 2 Apr 2016
Labor Day Sun 1 May 2016
May Revolution Day Wed 25 May 2016
Güemes Day Mon 20 Jun 2016
Flag Day (Belgrano) Mon 20 Jun 2016
Independence Day Sat 9 Jul 2016
San Martín Day Mon 15 Aug 2016
Cultural Diversity Day Mon 10 Oct 2016
National Sovereignty Day Sun 20 Nov 2016
Immaculate Conception Thu 8 Dec 2016
Christmas Sun 25 Dec 2016
New Year's Day Sun 1 Jan 2017
Carnival Monday Mon 27 Feb 2017
Carnival Tuesday Tue 28 Feb 2017
Remembrance Day Fri 24 Mar 2017
Malvinas Veterans Day Sun 2 Apr 2017
Good Friday Fri 14 Apr 2017
Labor Day Mon 1 May 2017
May Revolution Day Thu 25 May 2017
Güemes Day Sat 17 Jun 2017
Flag Day (Belgrano) Tue 20 Jun 2017
Independence Day Sun 9 Jul 2017
San Martín Day Mon 21 Aug 2017
Cultural Diversity Day Mon 16 Oct 2017
National Sovereignty Day Mon 20 Nov 2017
Immaculate Conception Fri 8 Dec 2017
Christmas Mon 25 Dec 2017
New Year's Day Mon 1 Jan 2018
Carnival Monday Mon 12 Feb 2018
Carnival Tuesday Tue 13 Feb 2018
Remembrance Day Sat 24 Mar 2018
Good Friday Fri 30 Mar 2018
Malvinas Veterans Day Mon 2 Apr 2018
Labor Day Tue 1 May 2018
May Revolution Day Fri 25 May 2018
Güemes Day Sun 17 Jun 2018
Flag Day (Belgrano) Wed 20 Jun 2018
Independence Day Mon 9 Jul 2018
San Martín Day Mon 20 Aug 2018
Cultural Diversity Day Mon 15 Oct 2018
National Sovereignty Day Mon 19 Nov 2018
Immaculate Conception Sat 8 Dec 2018
Christmas Tue 25 Dec 2018
New Year's Day Tue 1 Jan 2019
Carnival Monday Mon 4 Mar 2019
Carnival Tuesday Tue 5 Mar 2019
Remembrance Day Sun 24 Mar 2019
Malvinas Veterans Day Tue 2 Apr 2019
Good Friday Fri 19 Apr 2019
Labor Day Wed 1 May 2019
May Revolution Day Sat 25 May 2019
Güemes Day Mon 17 Jun 2019
Flag Day (Belgrano) Thu 20 Jun 2019
Independence Day Tue 9 Jul 2019
San Martín Day Sat 17 Aug 2019
Cultural Diversity Day Sat 12 Oct 2019
National Sovereignty Day Mon 18 Nov 2019
Immaculate Conception Sun 8 Dec 2019
Christmas Wed 25 Dec 2019
New Year's Day Wed 1 Jan 2020
Carnival Monday Mon 24 Feb 2020
Carnival Tuesday Tue 25 Feb 2020
Remembrance Day Tue 24 Mar 2020
Malvinas Veterans Day Thu 2 Apr 2020
Good Friday Fri 10 Apr 2020
Labor Day Fri 1 May 2020
May Revolution Day Mon 25 May 2020
Güemes Day Mon 15 Jun 2020
Flag Day (Belgrano) Sat 20 Jun 2020
Independence Day Thu 9 Jul 2020
San Martín Day Mon 17 Aug 2020
Cultural Diversity Day Mon 12 Oct 2020
National Sovereignty Day Mon 23 Nov 2020
Immaculate Conception Tue 8 Dec 2020
Christmas Fri 25 Dec 2020
New Year's Day Fri 1 Jan 2021
Carnival Monday Mon 15 Feb 2021
Carnival Tuesday Tue 16 Feb 2021
Remembrance Day Wed 24 Mar 2021
Malvinas Veterans Day Fri 2 Apr 2021
Good Friday Fri 2 Apr 2021
Labor Day Sat 1 May 2021
May Revolution Day Tue 25 May 2021
Flag Day (Belgrano) Sun 20 Jun 2021
Güemes Day Mon 21 Jun 2021
Independence Day Fri 9 Jul 2021
San Martín Day Mon 16 Aug 2021
Cultural Diversity Day Mon 11 Oct 2021
National Sovereignty Day Sat 20 Nov 2021
Immaculate Conception Wed 8 Dec 2021
Christmas Sat 25 Dec 2021
New Year's Day Sat 1 Jan 2022
Carnival Monday Mon 28 Feb 2022
Carnival Tuesday Tue 1 Mar 2022
Remembrance Day Thu 24 Mar 2022
Malvinas Veterans Day Sat 2 Apr 2022
Good Friday Fri 15 Apr 2022
Labor Day Sun 1 May 2022
May Revolution Day Wed 25 May 2022
Güemes Day Mon 20 Jun 2022
Flag Day (Belgrano) Mon 20 Jun 2022
Independence Day Sat 9 Jul 2022
San Martín Day Mon 15 Aug 2022
Cultural Diversity Day Mon 10 Oct 2022
National Sovereignty Day Sun 20 Nov 2022
Immaculate Conception Thu 8 Dec 2022
Christmas Sun 25 Dec 2022
New Year's Day Sun 1 Jan 2023
Carnival Monday Mon 20 Feb 2023
Carnival Tuesday Tue 21 Feb 2023
Remembrance Day Fri 24 Mar 2023
Malvinas Veterans Day Sun 2 Apr 2023
Good Friday Fri 7 Apr 2023
Labor Day Mon 1 May 2023
May Revolution Day Thu 25 May 2023
Güemes Day Sat 17 Jun 2023
Flag Day (Belgrano) Tue 20 Jun 2023
Independence Day Sun 9 Jul 2023
San Martín Day Mon 21 Aug 2023
Cultural Diversity Day Mon 16 Oct 2023
National Sovereignty Day Mon 20 Nov 2023
Immaculate Conception Fri 8 Dec 2023
Christmas Mon 25 Dec 2023
New Year's Day Mon 1 Jan 2024
Carnival Monday Mon 12 Feb 2024
Carnival Tuesday Tue 13 Feb 2024
Remembrance Day Sun 24 Mar 2024
Good Friday Fri 29 Mar 2024
Malvinas Veterans Day Tue 2 Apr 2024
Labor Day Wed 1 May 2024
May Revolution Day Sat 25 May 2024
Güemes Day Mon 17 Jun 2024
Flag Day (Belgrano) Thu 20 Jun 2024
Independence Day Tue 9 Jul 2024
San Martín Day Sat 17 Aug 2024
Cultural Diversity Day Sat 12 Oct 2024
National Sovereignty Day Mon 18 Nov 2024
Immaculate Conception Sun 8 Dec 2024
Christmas Wed 25 Dec 2024
New Year's Day Wed 1 Jan 2025
Carnival Monday Mon 3 Mar 2025
Carnival Tuesday Tue 4 Mar 2025
Remembrance Day Mon 24 Mar 2025
Malvinas Veterans Day Wed 2 Apr 2025
Good Friday Fri 18 Apr 2025
Labor Day Thu 1 May 2025
May Revolution Day Sun 25 May 2025
Güemes Day Mon 16 Jun 2025
Flag Day (Belgrano) Fri 20 Jun 2025
Independence Day Wed 9 Jul 2025
San Martín Day Sun 17 Aug 2025
Cultural Diversity Day Sun 12 Oct 2025
National Sovereignty Day Mon 24 Nov 2025
Immaculate Conception Mon 8 Dec 2025
Christmas Thu 25 Dec 2025
New Year's Day Thu 1 Jan 2026
Carnival Monday Mon 16 Feb 2026
Carnival Tuesday Tue 17 Feb 2026
Remembrance Day Tue 24 Mar 2026
Malvinas Veterans Day Thu 2 Apr 2026
Good Friday Fri 3 Apr 2026
Labor Day Fri 1 May 2026
May Revolution Day Mon 25 May 2026
Güemes Day Mon 15 Jun 2026
Flag Day (Belgrano) Sat 20 Jun 2026
Independence Day Thu 9 Jul 2026

Preguntas frecuentes

What counts as a business day?

In CivicCalendar a business day is a Monday–Friday that is not a legal holiday in Argentina. Saturdays and Sundays are not counted.

Is the start day included?

Yes. In “Between two dates” mode both dates are inclusive. In “Add business days”, counting starts on the start date if that date is a business day.

Are regional holidays considered?

National holidays and regional holidays defined for the country are used. If a regional holiday does not apply to your area, the result may differ.

Is this an official calculation?

It is indicative according to current legislation and calendars loaded on the site. For critical legal or labor deadlines, confirm with the relevant rule or authority.