Colombia

Business days calculator

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

Between two dates Add business days

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

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

7043

business days

From July 23, 2026 to May 1, 2055

Business day 7043
Weekend 3003
Holidays 464

10510 days in the period

10510

Total days

3003

Weekend

464

Holidays

Holidays in the period

Battle of Boyacá Fri 7 Aug 2026
Assumption Mon 17 Aug 2026
Columbus Day Mon 12 Oct 2026
All Saints' Day Mon 2 Nov 2026
Cartagena Independence Mon 16 Nov 2026
Immaculate Conception Tue 8 Dec 2026
Christmas Fri 25 Dec 2026
New Year's Day Fri 1 Jan 2027
Epiphany Mon 11 Jan 2027
Saint Joseph's Day Mon 22 Mar 2027
Maundy Thursday Thu 25 Mar 2027
Good Friday Fri 26 Mar 2027
Labor Day Sat 1 May 2027
Ascension Mon 10 May 2027
Corpus Christi Mon 31 May 2027
Sacred Heart Mon 7 Jun 2027
Saints Peter and Paul Mon 5 Jul 2027
Independence Day Tue 20 Jul 2027
Battle of Boyacá Sat 7 Aug 2027
Assumption Mon 16 Aug 2027
Columbus Day Mon 18 Oct 2027
All Saints' Day Mon 1 Nov 2027
Cartagena Independence Mon 15 Nov 2027
Immaculate Conception Wed 8 Dec 2027
Christmas Sat 25 Dec 2027
New Year's Day Sat 1 Jan 2028
Epiphany Mon 10 Jan 2028
Saint Joseph's Day Mon 20 Mar 2028
Maundy Thursday Thu 13 Apr 2028
Good Friday Fri 14 Apr 2028
Labor Day Mon 1 May 2028
Ascension Mon 29 May 2028
Corpus Christi Mon 19 Jun 2028
Sacred Heart Mon 26 Jun 2028
Saints Peter and Paul Mon 3 Jul 2028
Independence Day Thu 20 Jul 2028
Battle of Boyacá Mon 7 Aug 2028
Assumption Mon 21 Aug 2028
Columbus Day Mon 16 Oct 2028
All Saints' Day Mon 6 Nov 2028
Cartagena Independence Mon 13 Nov 2028
Immaculate Conception Fri 8 Dec 2028
Christmas Mon 25 Dec 2028
New Year's Day Mon 1 Jan 2029
Epiphany Mon 8 Jan 2029
Saint Joseph's Day Mon 19 Mar 2029
Maundy Thursday Thu 29 Mar 2029
Good Friday Fri 30 Mar 2029
Labor Day Tue 1 May 2029
Ascension Mon 14 May 2029
Corpus Christi Mon 4 Jun 2029
Sacred Heart Mon 11 Jun 2029
Saints Peter and Paul Mon 2 Jul 2029
Independence Day Fri 20 Jul 2029
Battle of Boyacá Tue 7 Aug 2029
Assumption Mon 20 Aug 2029
Columbus Day Mon 15 Oct 2029
All Saints' Day Mon 5 Nov 2029
Cartagena Independence Mon 12 Nov 2029
Immaculate Conception Sat 8 Dec 2029
Christmas Tue 25 Dec 2029
New Year's Day Tue 1 Jan 2030
Epiphany Mon 7 Jan 2030
Saint Joseph's Day Mon 25 Mar 2030
Maundy Thursday Thu 18 Apr 2030
Good Friday Fri 19 Apr 2030
Labor Day Wed 1 May 2030
Ascension Mon 3 Jun 2030
Corpus Christi Mon 24 Jun 2030
Saints Peter and Paul Mon 1 Jul 2030
Sacred Heart Mon 1 Jul 2030
Independence Day Sat 20 Jul 2030
Battle of Boyacá Wed 7 Aug 2030
Assumption Mon 19 Aug 2030
Columbus Day Mon 14 Oct 2030
All Saints' Day Mon 4 Nov 2030
Cartagena Independence Mon 11 Nov 2030
Immaculate Conception Sun 8 Dec 2030
Christmas Wed 25 Dec 2030
New Year's Day Wed 1 Jan 2031
Epiphany Mon 6 Jan 2031
Saint Joseph's Day Mon 24 Mar 2031
Maundy Thursday Thu 10 Apr 2031
Good Friday Fri 11 Apr 2031
Labor Day Thu 1 May 2031
Ascension Mon 26 May 2031
Corpus Christi Mon 16 Jun 2031
Sacred Heart Mon 23 Jun 2031
Saints Peter and Paul Mon 30 Jun 2031
Independence Day Sun 20 Jul 2031
Battle of Boyacá Thu 7 Aug 2031
Assumption Mon 18 Aug 2031
Columbus Day Mon 13 Oct 2031
All Saints' Day Mon 3 Nov 2031
Cartagena Independence Mon 17 Nov 2031
Immaculate Conception Mon 8 Dec 2031
Christmas Thu 25 Dec 2031
New Year's Day Thu 1 Jan 2032
Epiphany Mon 12 Jan 2032
Saint Joseph's Day Mon 22 Mar 2032
Maundy Thursday Thu 25 Mar 2032
Good Friday Fri 26 Mar 2032
Labor Day Sat 1 May 2032
Ascension Mon 10 May 2032
Corpus Christi Mon 31 May 2032
Sacred Heart Mon 7 Jun 2032
Saints Peter and Paul Mon 5 Jul 2032
Independence Day Tue 20 Jul 2032
Battle of Boyacá Sat 7 Aug 2032
Assumption Mon 16 Aug 2032
Columbus Day Mon 18 Oct 2032
All Saints' Day Mon 1 Nov 2032
Cartagena Independence Mon 15 Nov 2032
Immaculate Conception Wed 8 Dec 2032
Christmas Sat 25 Dec 2032
New Year's Day Sat 1 Jan 2033
Epiphany Mon 10 Jan 2033
Saint Joseph's Day Mon 21 Mar 2033
Maundy Thursday Thu 14 Apr 2033
Good Friday Fri 15 Apr 2033
Labor Day Sun 1 May 2033
Ascension Mon 30 May 2033
Corpus Christi Mon 20 Jun 2033
Sacred Heart Mon 27 Jun 2033
Saints Peter and Paul Mon 4 Jul 2033
Independence Day Wed 20 Jul 2033
Battle of Boyacá Sun 7 Aug 2033
Assumption Mon 15 Aug 2033
Columbus Day Mon 17 Oct 2033
All Saints' Day Mon 7 Nov 2033
Cartagena Independence Mon 14 Nov 2033
Immaculate Conception Thu 8 Dec 2033
Christmas Sun 25 Dec 2033
New Year's Day Sun 1 Jan 2034
Epiphany Mon 9 Jan 2034
Saint Joseph's Day Mon 20 Mar 2034
Maundy Thursday Thu 6 Apr 2034
Good Friday Fri 7 Apr 2034
Labor Day Mon 1 May 2034
Ascension Mon 22 May 2034
Corpus Christi Mon 12 Jun 2034
Sacred Heart Mon 19 Jun 2034
Saints Peter and Paul Mon 3 Jul 2034
Independence Day Thu 20 Jul 2034
Battle of Boyacá Mon 7 Aug 2034
Assumption Mon 21 Aug 2034
Columbus Day Mon 16 Oct 2034
All Saints' Day Mon 6 Nov 2034
Cartagena Independence Mon 13 Nov 2034
Immaculate Conception Fri 8 Dec 2034
Christmas Mon 25 Dec 2034
New Year's Day Mon 1 Jan 2035
Epiphany Mon 8 Jan 2035
Saint Joseph's Day Mon 19 Mar 2035
Maundy Thursday Thu 22 Mar 2035
Good Friday Fri 23 Mar 2035
Labor Day Tue 1 May 2035
Ascension Mon 7 May 2035
Corpus Christi Mon 28 May 2035
Sacred Heart Mon 4 Jun 2035
Saints Peter and Paul Mon 2 Jul 2035
Independence Day Fri 20 Jul 2035
Battle of Boyacá Tue 7 Aug 2035
Assumption Mon 20 Aug 2035
Columbus Day Mon 15 Oct 2035
All Saints' Day Mon 5 Nov 2035
Cartagena Independence Mon 12 Nov 2035
Immaculate Conception Sat 8 Dec 2035
Christmas Tue 25 Dec 2035
New Year's Day Tue 1 Jan 2036
Epiphany Mon 7 Jan 2036
Saint Joseph's Day Mon 24 Mar 2036
Maundy Thursday Thu 10 Apr 2036
Good Friday Fri 11 Apr 2036
Labor Day Thu 1 May 2036
Ascension Mon 26 May 2036
Corpus Christi Mon 16 Jun 2036
Sacred Heart Mon 23 Jun 2036
Saints Peter and Paul Mon 30 Jun 2036
Independence Day Sun 20 Jul 2036
Battle of Boyacá Thu 7 Aug 2036
Assumption Mon 18 Aug 2036
Columbus Day Mon 13 Oct 2036
All Saints' Day Mon 3 Nov 2036
Cartagena Independence Mon 17 Nov 2036
Immaculate Conception Mon 8 Dec 2036
Christmas Thu 25 Dec 2036
New Year's Day Thu 1 Jan 2037
Epiphany Mon 12 Jan 2037
Saint Joseph's Day Mon 23 Mar 2037
Maundy Thursday Thu 2 Apr 2037
Good Friday Fri 3 Apr 2037
Labor Day Fri 1 May 2037
Ascension Mon 18 May 2037
Corpus Christi Mon 8 Jun 2037
Sacred Heart Mon 15 Jun 2037
Saints Peter and Paul Mon 29 Jun 2037
Independence Day Mon 20 Jul 2037
Battle of Boyacá Fri 7 Aug 2037
Assumption Mon 17 Aug 2037
Columbus Day Mon 12 Oct 2037
All Saints' Day Mon 2 Nov 2037
Cartagena Independence Mon 16 Nov 2037
Immaculate Conception Tue 8 Dec 2037
Christmas Fri 25 Dec 2037
New Year's Day Fri 1 Jan 2038
Epiphany Mon 11 Jan 2038
Saint Joseph's Day Mon 22 Mar 2038
Maundy Thursday Thu 22 Apr 2038
Good Friday Fri 23 Apr 2038
Labor Day Sat 1 May 2038
Ascension Mon 7 Jun 2038
Corpus Christi Mon 28 Jun 2038
Saints Peter and Paul Mon 5 Jul 2038
Sacred Heart Mon 5 Jul 2038
Independence Day Tue 20 Jul 2038
Battle of Boyacá Sat 7 Aug 2038
Assumption Mon 16 Aug 2038
Columbus Day Mon 18 Oct 2038
All Saints' Day Mon 1 Nov 2038
Cartagena Independence Mon 15 Nov 2038
Immaculate Conception Wed 8 Dec 2038
Christmas Sat 25 Dec 2038
New Year's Day Sat 1 Jan 2039
Epiphany Mon 10 Jan 2039
Saint Joseph's Day Mon 21 Mar 2039
Maundy Thursday Thu 7 Apr 2039
Good Friday Fri 8 Apr 2039
Labor Day Sun 1 May 2039
Ascension Mon 23 May 2039
Corpus Christi Mon 13 Jun 2039
Sacred Heart Mon 20 Jun 2039
Saints Peter and Paul Mon 4 Jul 2039
Independence Day Wed 20 Jul 2039
Battle of Boyacá Sun 7 Aug 2039
Assumption Mon 15 Aug 2039
Columbus Day Mon 17 Oct 2039
All Saints' Day Mon 7 Nov 2039
Cartagena Independence Mon 14 Nov 2039
Immaculate Conception Thu 8 Dec 2039
Christmas Sun 25 Dec 2039
New Year's Day Sun 1 Jan 2040
Epiphany Mon 9 Jan 2040
Saint Joseph's Day Mon 19 Mar 2040
Maundy Thursday Thu 29 Mar 2040
Good Friday Fri 30 Mar 2040
Labor Day Tue 1 May 2040
Ascension Mon 14 May 2040
Corpus Christi Mon 4 Jun 2040
Sacred Heart Mon 11 Jun 2040
Saints Peter and Paul Mon 2 Jul 2040
Independence Day Fri 20 Jul 2040
Battle of Boyacá Tue 7 Aug 2040
Assumption Mon 20 Aug 2040
Columbus Day Mon 15 Oct 2040
All Saints' Day Mon 5 Nov 2040
Cartagena Independence Mon 12 Nov 2040
Immaculate Conception Sat 8 Dec 2040
Christmas Tue 25 Dec 2040
New Year's Day Tue 1 Jan 2041
Epiphany Mon 7 Jan 2041
Saint Joseph's Day Mon 25 Mar 2041
Maundy Thursday Thu 18 Apr 2041
Good Friday Fri 19 Apr 2041
Labor Day Wed 1 May 2041
Ascension Mon 3 Jun 2041
Corpus Christi Mon 24 Jun 2041
Saints Peter and Paul Mon 1 Jul 2041
Sacred Heart Mon 1 Jul 2041
Independence Day Sat 20 Jul 2041
Battle of Boyacá Wed 7 Aug 2041
Assumption Mon 19 Aug 2041
Columbus Day Mon 14 Oct 2041
All Saints' Day Mon 4 Nov 2041
Cartagena Independence Mon 11 Nov 2041
Immaculate Conception Sun 8 Dec 2041
Christmas Wed 25 Dec 2041
New Year's Day Wed 1 Jan 2042
Epiphany Mon 6 Jan 2042
Saint Joseph's Day Mon 24 Mar 2042
Maundy Thursday Thu 3 Apr 2042
Good Friday Fri 4 Apr 2042
Labor Day Thu 1 May 2042
Ascension Mon 19 May 2042
Corpus Christi Mon 9 Jun 2042
Sacred Heart Mon 16 Jun 2042
Saints Peter and Paul Mon 30 Jun 2042
Independence Day Sun 20 Jul 2042
Battle of Boyacá Thu 7 Aug 2042
Assumption Mon 18 Aug 2042
Columbus Day Mon 13 Oct 2042
All Saints' Day Mon 3 Nov 2042
Cartagena Independence Mon 17 Nov 2042
Immaculate Conception Mon 8 Dec 2042
Christmas Thu 25 Dec 2042
New Year's Day Thu 1 Jan 2043
Epiphany Mon 12 Jan 2043
Saint Joseph's Day Mon 23 Mar 2043
Maundy Thursday Thu 26 Mar 2043
Good Friday Fri 27 Mar 2043
Labor Day Fri 1 May 2043
Ascension Mon 11 May 2043
Corpus Christi Mon 1 Jun 2043
Sacred Heart Mon 8 Jun 2043
Saints Peter and Paul Mon 29 Jun 2043
Independence Day Mon 20 Jul 2043
Battle of Boyacá Fri 7 Aug 2043
Assumption Mon 17 Aug 2043
Columbus Day Mon 12 Oct 2043
All Saints' Day Mon 2 Nov 2043
Cartagena Independence Mon 16 Nov 2043
Immaculate Conception Tue 8 Dec 2043
Christmas Fri 25 Dec 2043
New Year's Day Fri 1 Jan 2044
Epiphany Mon 11 Jan 2044
Saint Joseph's Day Mon 21 Mar 2044
Maundy Thursday Thu 14 Apr 2044
Good Friday Fri 15 Apr 2044
Labor Day Sun 1 May 2044
Ascension Mon 30 May 2044
Corpus Christi Mon 20 Jun 2044
Sacred Heart Mon 27 Jun 2044
Saints Peter and Paul Mon 4 Jul 2044
Independence Day Wed 20 Jul 2044
Battle of Boyacá Sun 7 Aug 2044
Assumption Mon 15 Aug 2044
Columbus Day Mon 17 Oct 2044
All Saints' Day Mon 7 Nov 2044
Cartagena Independence Mon 14 Nov 2044
Immaculate Conception Thu 8 Dec 2044
Christmas Sun 25 Dec 2044
New Year's Day Sun 1 Jan 2045
Epiphany Mon 9 Jan 2045
Saint Joseph's Day Mon 20 Mar 2045
Maundy Thursday Thu 6 Apr 2045
Good Friday Fri 7 Apr 2045
Labor Day Mon 1 May 2045
Ascension Mon 22 May 2045
Corpus Christi Mon 12 Jun 2045
Sacred Heart Mon 19 Jun 2045
Saints Peter and Paul Mon 3 Jul 2045
Independence Day Thu 20 Jul 2045
Battle of Boyacá Mon 7 Aug 2045
Assumption Mon 21 Aug 2045
Columbus Day Mon 16 Oct 2045
All Saints' Day Mon 6 Nov 2045
Cartagena Independence Mon 13 Nov 2045
Immaculate Conception Fri 8 Dec 2045
Christmas Mon 25 Dec 2045
New Year's Day Mon 1 Jan 2046
Epiphany Mon 8 Jan 2046
Saint Joseph's Day Mon 19 Mar 2046
Maundy Thursday Thu 22 Mar 2046
Good Friday Fri 23 Mar 2046
Labor Day Tue 1 May 2046
Ascension Mon 7 May 2046
Corpus Christi Mon 28 May 2046
Sacred Heart Mon 4 Jun 2046
Saints Peter and Paul Mon 2 Jul 2046
Independence Day Fri 20 Jul 2046
Battle of Boyacá Tue 7 Aug 2046
Assumption Mon 20 Aug 2046
Columbus Day Mon 15 Oct 2046
All Saints' Day Mon 5 Nov 2046
Cartagena Independence Mon 12 Nov 2046
Immaculate Conception Sat 8 Dec 2046
Christmas Tue 25 Dec 2046
New Year's Day Tue 1 Jan 2047
Epiphany Mon 7 Jan 2047
Saint Joseph's Day Mon 25 Mar 2047
Maundy Thursday Thu 11 Apr 2047
Good Friday Fri 12 Apr 2047
Labor Day Wed 1 May 2047
Ascension Mon 27 May 2047
Corpus Christi Mon 17 Jun 2047
Sacred Heart Mon 24 Jun 2047
Saints Peter and Paul Mon 1 Jul 2047
Independence Day Sat 20 Jul 2047
Battle of Boyacá Wed 7 Aug 2047
Assumption Mon 19 Aug 2047
Columbus Day Mon 14 Oct 2047
All Saints' Day Mon 4 Nov 2047
Cartagena Independence Mon 11 Nov 2047
Immaculate Conception Sun 8 Dec 2047
Christmas Wed 25 Dec 2047
New Year's Day Wed 1 Jan 2048
Epiphany Mon 6 Jan 2048
Saint Joseph's Day Mon 23 Mar 2048
Maundy Thursday Thu 2 Apr 2048
Good Friday Fri 3 Apr 2048
Labor Day Fri 1 May 2048
Ascension Mon 18 May 2048
Corpus Christi Mon 8 Jun 2048
Sacred Heart Mon 15 Jun 2048
Saints Peter and Paul Mon 29 Jun 2048
Independence Day Mon 20 Jul 2048
Battle of Boyacá Fri 7 Aug 2048
Assumption Mon 17 Aug 2048
Columbus Day Mon 12 Oct 2048
All Saints' Day Mon 2 Nov 2048
Cartagena Independence Mon 16 Nov 2048
Immaculate Conception Tue 8 Dec 2048
Christmas Fri 25 Dec 2048
New Year's Day Fri 1 Jan 2049
Epiphany Mon 11 Jan 2049
Saint Joseph's Day Mon 22 Mar 2049
Maundy Thursday Thu 15 Apr 2049
Good Friday Fri 16 Apr 2049
Labor Day Sat 1 May 2049
Ascension Mon 31 May 2049
Corpus Christi Mon 21 Jun 2049
Sacred Heart Mon 28 Jun 2049
Saints Peter and Paul Mon 5 Jul 2049
Independence Day Tue 20 Jul 2049
Battle of Boyacá Sat 7 Aug 2049
Assumption Mon 16 Aug 2049
Columbus Day Mon 18 Oct 2049
All Saints' Day Mon 1 Nov 2049
Cartagena Independence Mon 15 Nov 2049
Immaculate Conception Wed 8 Dec 2049
Christmas Sat 25 Dec 2049
New Year's Day Sat 1 Jan 2050
Epiphany Mon 10 Jan 2050
Saint Joseph's Day Mon 21 Mar 2050
Maundy Thursday Thu 7 Apr 2050
Good Friday Fri 8 Apr 2050
Labor Day Sun 1 May 2050
Ascension Mon 23 May 2050
Corpus Christi Mon 13 Jun 2050
Sacred Heart Mon 20 Jun 2050
Saints Peter and Paul Mon 4 Jul 2050
Independence Day Wed 20 Jul 2050
Battle of Boyacá Sun 7 Aug 2050
Assumption Mon 15 Aug 2050
Columbus Day Mon 17 Oct 2050
All Saints' Day Mon 7 Nov 2050
Cartagena Independence Mon 14 Nov 2050
Immaculate Conception Thu 8 Dec 2050
Christmas Sun 25 Dec 2050
New Year's Day Sun 1 Jan 2051
Epiphany Mon 9 Jan 2051
Saint Joseph's Day Mon 20 Mar 2051
Maundy Thursday Thu 30 Mar 2051
Good Friday Fri 31 Mar 2051
Labor Day Mon 1 May 2051
Ascension Mon 15 May 2051
Corpus Christi Mon 5 Jun 2051
Sacred Heart Mon 12 Jun 2051
Saints Peter and Paul Mon 3 Jul 2051
Independence Day Thu 20 Jul 2051
Battle of Boyacá Mon 7 Aug 2051
Assumption Mon 21 Aug 2051
Columbus Day Mon 16 Oct 2051
All Saints' Day Mon 6 Nov 2051
Cartagena Independence Mon 13 Nov 2051
Immaculate Conception Fri 8 Dec 2051
Christmas Mon 25 Dec 2051
New Year's Day Mon 1 Jan 2052
Epiphany Mon 8 Jan 2052
Saint Joseph's Day Mon 25 Mar 2052
Maundy Thursday Thu 18 Apr 2052
Good Friday Fri 19 Apr 2052
Labor Day Wed 1 May 2052
Ascension Mon 3 Jun 2052
Corpus Christi Mon 24 Jun 2052
Saints Peter and Paul Mon 1 Jul 2052
Sacred Heart Mon 1 Jul 2052
Independence Day Sat 20 Jul 2052
Battle of Boyacá Wed 7 Aug 2052
Assumption Mon 19 Aug 2052
Columbus Day Mon 14 Oct 2052
All Saints' Day Mon 4 Nov 2052
Cartagena Independence Mon 11 Nov 2052
Immaculate Conception Sun 8 Dec 2052
Christmas Wed 25 Dec 2052
New Year's Day Wed 1 Jan 2053
Epiphany Mon 6 Jan 2053
Saint Joseph's Day Mon 24 Mar 2053
Maundy Thursday Thu 3 Apr 2053
Good Friday Fri 4 Apr 2053
Labor Day Thu 1 May 2053
Ascension Mon 19 May 2053
Corpus Christi Mon 9 Jun 2053
Sacred Heart Mon 16 Jun 2053
Saints Peter and Paul Mon 30 Jun 2053
Independence Day Sun 20 Jul 2053
Battle of Boyacá Thu 7 Aug 2053
Assumption Mon 18 Aug 2053
Columbus Day Mon 13 Oct 2053
All Saints' Day Mon 3 Nov 2053
Cartagena Independence Mon 17 Nov 2053
Immaculate Conception Mon 8 Dec 2053
Christmas Thu 25 Dec 2053
New Year's Day Thu 1 Jan 2054
Epiphany Mon 12 Jan 2054
Saint Joseph's Day Mon 23 Mar 2054
Maundy Thursday Thu 26 Mar 2054
Good Friday Fri 27 Mar 2054
Labor Day Fri 1 May 2054
Ascension Mon 11 May 2054
Corpus Christi Mon 1 Jun 2054
Sacred Heart Mon 8 Jun 2054
Saints Peter and Paul Mon 29 Jun 2054
Independence Day Mon 20 Jul 2054
Battle of Boyacá Fri 7 Aug 2054
Assumption Mon 17 Aug 2054
Columbus Day Mon 12 Oct 2054
All Saints' Day Mon 2 Nov 2054
Cartagena Independence Mon 16 Nov 2054
Immaculate Conception Tue 8 Dec 2054
Christmas Fri 25 Dec 2054
New Year's Day Fri 1 Jan 2055
Epiphany Mon 11 Jan 2055
Saint Joseph's Day Mon 22 Mar 2055
Maundy Thursday Thu 15 Apr 2055
Good Friday Fri 16 Apr 2055
Labor Day Sat 1 May 2055

Preguntas frecuentes

What counts as a business day?

In CivicCalendar a business day is a Monday–Friday that is not a legal holiday in Colombia. 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.