Brasil

Business days calculator

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

Between two dates Add business days

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

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

9628

business days

From July 24, 2026 to January 1, 2065

Business day 9628
Weekend 4012
Holidays 402

14042 days in the period

14042

Total days

4012

Weekend

402

Holidays

Holidays in the period

Independence Day Mon 7 Sep 2026
Our Lady of Aparecida Mon 12 Oct 2026
All Souls' Day Mon 2 Nov 2026
Republic Proclamation Day Sun 15 Nov 2026
Black Awareness Day Fri 20 Nov 2026
Christmas Day Fri 25 Dec 2026
New Year's Day Fri 1 Jan 2027
Carnival Monday Mon 8 Feb 2027
Carnival Tuesday Tue 9 Feb 2027
Good Friday Fri 26 Mar 2027
Tiradentes Wed 21 Apr 2027
Labour Day Sat 1 May 2027
Corpus Christi Thu 27 May 2027
Independence Day Tue 7 Sep 2027
Our Lady of Aparecida Tue 12 Oct 2027
All Souls' Day Tue 2 Nov 2027
Republic Proclamation Day Mon 15 Nov 2027
Black Awareness Day Sat 20 Nov 2027
Christmas Day Sat 25 Dec 2027
New Year's Day Sat 1 Jan 2028
Carnival Monday Mon 28 Feb 2028
Carnival Tuesday Tue 29 Feb 2028
Good Friday Fri 14 Apr 2028
Tiradentes Fri 21 Apr 2028
Labour Day Mon 1 May 2028
Corpus Christi Thu 15 Jun 2028
Independence Day Thu 7 Sep 2028
Our Lady of Aparecida Thu 12 Oct 2028
All Souls' Day Thu 2 Nov 2028
Republic Proclamation Day Wed 15 Nov 2028
Black Awareness Day Mon 20 Nov 2028
Christmas Day Mon 25 Dec 2028
New Year's Day Mon 1 Jan 2029
Carnival Monday Mon 12 Feb 2029
Carnival Tuesday Tue 13 Feb 2029
Good Friday Fri 30 Mar 2029
Tiradentes Sat 21 Apr 2029
Labour Day Tue 1 May 2029
Corpus Christi Thu 31 May 2029
Independence Day Fri 7 Sep 2029
Our Lady of Aparecida Fri 12 Oct 2029
All Souls' Day Fri 2 Nov 2029
Republic Proclamation Day Thu 15 Nov 2029
Black Awareness Day Tue 20 Nov 2029
Christmas Day Tue 25 Dec 2029
New Year's Day Tue 1 Jan 2030
Carnival Monday Mon 4 Mar 2030
Carnival Tuesday Tue 5 Mar 2030
Good Friday Fri 19 Apr 2030
Tiradentes Sun 21 Apr 2030
Labour Day Wed 1 May 2030
Corpus Christi Thu 20 Jun 2030
Independence Day Sat 7 Sep 2030
Our Lady of Aparecida Sat 12 Oct 2030
All Souls' Day Sat 2 Nov 2030
Republic Proclamation Day Fri 15 Nov 2030
Black Awareness Day Wed 20 Nov 2030
Christmas Day Wed 25 Dec 2030
New Year's Day Wed 1 Jan 2031
Carnival Monday Mon 24 Feb 2031
Carnival Tuesday Tue 25 Feb 2031
Good Friday Fri 11 Apr 2031
Tiradentes Mon 21 Apr 2031
Labour Day Thu 1 May 2031
Corpus Christi Thu 12 Jun 2031
Independence Day Sun 7 Sep 2031
Our Lady of Aparecida Sun 12 Oct 2031
All Souls' Day Sun 2 Nov 2031
Republic Proclamation Day Sat 15 Nov 2031
Black Awareness Day Thu 20 Nov 2031
Christmas Day Thu 25 Dec 2031
New Year's Day Thu 1 Jan 2032
Carnival Monday Mon 9 Feb 2032
Carnival Tuesday Tue 10 Feb 2032
Good Friday Fri 26 Mar 2032
Tiradentes Wed 21 Apr 2032
Labour Day Sat 1 May 2032
Corpus Christi Thu 27 May 2032
Independence Day Tue 7 Sep 2032
Our Lady of Aparecida Tue 12 Oct 2032
All Souls' Day Tue 2 Nov 2032
Republic Proclamation Day Mon 15 Nov 2032
Black Awareness Day Sat 20 Nov 2032
Christmas Day Sat 25 Dec 2032
New Year's Day Sat 1 Jan 2033
Carnival Monday Mon 28 Feb 2033
Carnival Tuesday Tue 1 Mar 2033
Good Friday Fri 15 Apr 2033
Tiradentes Thu 21 Apr 2033
Labour Day Sun 1 May 2033
Corpus Christi Thu 16 Jun 2033
Independence Day Wed 7 Sep 2033
Our Lady of Aparecida Wed 12 Oct 2033
All Souls' Day Wed 2 Nov 2033
Republic Proclamation Day Tue 15 Nov 2033
Black Awareness Day Sun 20 Nov 2033
Christmas Day Sun 25 Dec 2033
New Year's Day Sun 1 Jan 2034
Carnival Monday Mon 20 Feb 2034
Carnival Tuesday Tue 21 Feb 2034
Good Friday Fri 7 Apr 2034
Tiradentes Fri 21 Apr 2034
Labour Day Mon 1 May 2034
Corpus Christi Thu 8 Jun 2034
Independence Day Thu 7 Sep 2034
Our Lady of Aparecida Thu 12 Oct 2034
All Souls' Day Thu 2 Nov 2034
Republic Proclamation Day Wed 15 Nov 2034
Black Awareness Day Mon 20 Nov 2034
Christmas Day Mon 25 Dec 2034
New Year's Day Mon 1 Jan 2035
Carnival Monday Mon 5 Feb 2035
Carnival Tuesday Tue 6 Feb 2035
Good Friday Fri 23 Mar 2035
Tiradentes Sat 21 Apr 2035
Labour Day Tue 1 May 2035
Corpus Christi Thu 24 May 2035
Independence Day Fri 7 Sep 2035
Our Lady of Aparecida Fri 12 Oct 2035
All Souls' Day Fri 2 Nov 2035
Republic Proclamation Day Thu 15 Nov 2035
Black Awareness Day Tue 20 Nov 2035
Christmas Day Tue 25 Dec 2035
New Year's Day Tue 1 Jan 2036
Carnival Monday Mon 25 Feb 2036
Carnival Tuesday Tue 26 Feb 2036
Good Friday Fri 11 Apr 2036
Tiradentes Mon 21 Apr 2036
Labour Day Thu 1 May 2036
Corpus Christi Thu 12 Jun 2036
Independence Day Sun 7 Sep 2036
Our Lady of Aparecida Sun 12 Oct 2036
All Souls' Day Sun 2 Nov 2036
Republic Proclamation Day Sat 15 Nov 2036
Black Awareness Day Thu 20 Nov 2036
Christmas Day Thu 25 Dec 2036
New Year's Day Thu 1 Jan 2037
Carnival Monday Mon 16 Feb 2037
Carnival Tuesday Tue 17 Feb 2037
Good Friday Fri 3 Apr 2037
Tiradentes Tue 21 Apr 2037
Labour Day Fri 1 May 2037
Corpus Christi Thu 4 Jun 2037
Independence Day Mon 7 Sep 2037
Our Lady of Aparecida Mon 12 Oct 2037
All Souls' Day Mon 2 Nov 2037
Republic Proclamation Day Sun 15 Nov 2037
Black Awareness Day Fri 20 Nov 2037
Christmas Day Fri 25 Dec 2037
New Year's Day Fri 1 Jan 2038
Carnival Monday Mon 8 Mar 2038
Carnival Tuesday Tue 9 Mar 2038
Tiradentes Wed 21 Apr 2038
Good Friday Fri 23 Apr 2038
Labour Day Sat 1 May 2038
Corpus Christi Thu 24 Jun 2038
Independence Day Tue 7 Sep 2038
Our Lady of Aparecida Tue 12 Oct 2038
All Souls' Day Tue 2 Nov 2038
Republic Proclamation Day Mon 15 Nov 2038
Black Awareness Day Sat 20 Nov 2038
Christmas Day Sat 25 Dec 2038
New Year's Day Sat 1 Jan 2039
Carnival Monday Mon 21 Feb 2039
Carnival Tuesday Tue 22 Feb 2039
Good Friday Fri 8 Apr 2039
Tiradentes Thu 21 Apr 2039
Labour Day Sun 1 May 2039
Corpus Christi Thu 9 Jun 2039
Independence Day Wed 7 Sep 2039
Our Lady of Aparecida Wed 12 Oct 2039
All Souls' Day Wed 2 Nov 2039
Republic Proclamation Day Tue 15 Nov 2039
Black Awareness Day Sun 20 Nov 2039
Christmas Day Sun 25 Dec 2039
New Year's Day Sun 1 Jan 2040
Carnival Monday Mon 13 Feb 2040
Carnival Tuesday Tue 14 Feb 2040
Good Friday Fri 30 Mar 2040
Tiradentes Sat 21 Apr 2040
Labour Day Tue 1 May 2040
Corpus Christi Thu 31 May 2040
Independence Day Fri 7 Sep 2040
Our Lady of Aparecida Fri 12 Oct 2040
All Souls' Day Fri 2 Nov 2040
Republic Proclamation Day Thu 15 Nov 2040
Black Awareness Day Tue 20 Nov 2040
Christmas Day Tue 25 Dec 2040
New Year's Day Tue 1 Jan 2041
Carnival Monday Mon 4 Mar 2041
Carnival Tuesday Tue 5 Mar 2041
Good Friday Fri 19 Apr 2041
Tiradentes Sun 21 Apr 2041
Labour Day Wed 1 May 2041
Corpus Christi Thu 20 Jun 2041
Independence Day Sat 7 Sep 2041
Our Lady of Aparecida Sat 12 Oct 2041
All Souls' Day Sat 2 Nov 2041
Republic Proclamation Day Fri 15 Nov 2041
Black Awareness Day Wed 20 Nov 2041
Christmas Day Wed 25 Dec 2041
New Year's Day Wed 1 Jan 2042
Carnival Monday Mon 17 Feb 2042
Carnival Tuesday Tue 18 Feb 2042
Good Friday Fri 4 Apr 2042
Tiradentes Mon 21 Apr 2042
Labour Day Thu 1 May 2042
Corpus Christi Thu 5 Jun 2042
Independence Day Sun 7 Sep 2042
Our Lady of Aparecida Sun 12 Oct 2042
All Souls' Day Sun 2 Nov 2042
Republic Proclamation Day Sat 15 Nov 2042
Black Awareness Day Thu 20 Nov 2042
Christmas Day Thu 25 Dec 2042
New Year's Day Thu 1 Jan 2043
Carnival Monday Mon 9 Feb 2043
Carnival Tuesday Tue 10 Feb 2043
Good Friday Fri 27 Mar 2043
Tiradentes Tue 21 Apr 2043
Labour Day Fri 1 May 2043
Corpus Christi Thu 28 May 2043
Independence Day Mon 7 Sep 2043
Our Lady of Aparecida Mon 12 Oct 2043
All Souls' Day Mon 2 Nov 2043
Republic Proclamation Day Sun 15 Nov 2043
Black Awareness Day Fri 20 Nov 2043
Christmas Day Fri 25 Dec 2043
New Year's Day Fri 1 Jan 2044
Carnival Monday Mon 29 Feb 2044
Carnival Tuesday Tue 1 Mar 2044
Good Friday Fri 15 Apr 2044
Tiradentes Thu 21 Apr 2044
Labour Day Sun 1 May 2044
Corpus Christi Thu 16 Jun 2044
Independence Day Wed 7 Sep 2044
Our Lady of Aparecida Wed 12 Oct 2044
All Souls' Day Wed 2 Nov 2044
Republic Proclamation Day Tue 15 Nov 2044
Black Awareness Day Sun 20 Nov 2044
Christmas Day Sun 25 Dec 2044
New Year's Day Sun 1 Jan 2045
Carnival Monday Mon 20 Feb 2045
Carnival Tuesday Tue 21 Feb 2045
Good Friday Fri 7 Apr 2045
Tiradentes Fri 21 Apr 2045
Labour Day Mon 1 May 2045
Corpus Christi Thu 8 Jun 2045
Independence Day Thu 7 Sep 2045
Our Lady of Aparecida Thu 12 Oct 2045
All Souls' Day Thu 2 Nov 2045
Republic Proclamation Day Wed 15 Nov 2045
Black Awareness Day Mon 20 Nov 2045
Christmas Day Mon 25 Dec 2045
New Year's Day Mon 1 Jan 2046
Carnival Monday Mon 5 Feb 2046
Carnival Tuesday Tue 6 Feb 2046
Good Friday Fri 23 Mar 2046
Tiradentes Sat 21 Apr 2046
Labour Day Tue 1 May 2046
Corpus Christi Thu 24 May 2046
Independence Day Fri 7 Sep 2046
Our Lady of Aparecida Fri 12 Oct 2046
All Souls' Day Fri 2 Nov 2046
Republic Proclamation Day Thu 15 Nov 2046
Black Awareness Day Tue 20 Nov 2046
Christmas Day Tue 25 Dec 2046
New Year's Day Tue 1 Jan 2047
Carnival Monday Mon 25 Feb 2047
Carnival Tuesday Tue 26 Feb 2047
Good Friday Fri 12 Apr 2047
Tiradentes Sun 21 Apr 2047
Labour Day Wed 1 May 2047
Corpus Christi Thu 13 Jun 2047
Independence Day Sat 7 Sep 2047
Our Lady of Aparecida Sat 12 Oct 2047
All Souls' Day Sat 2 Nov 2047
Republic Proclamation Day Fri 15 Nov 2047
Black Awareness Day Wed 20 Nov 2047
Christmas Day Wed 25 Dec 2047
New Year's Day Wed 1 Jan 2048
Carnival Monday Mon 17 Feb 2048
Carnival Tuesday Tue 18 Feb 2048
Good Friday Fri 3 Apr 2048
Tiradentes Tue 21 Apr 2048
Labour Day Fri 1 May 2048
Corpus Christi Thu 4 Jun 2048
Independence Day Mon 7 Sep 2048
Our Lady of Aparecida Mon 12 Oct 2048
All Souls' Day Mon 2 Nov 2048
Republic Proclamation Day Sun 15 Nov 2048
Black Awareness Day Fri 20 Nov 2048
Christmas Day Fri 25 Dec 2048
New Year's Day Fri 1 Jan 2049
Carnival Monday Mon 1 Mar 2049
Carnival Tuesday Tue 2 Mar 2049
Good Friday Fri 16 Apr 2049
Tiradentes Wed 21 Apr 2049
Labour Day Sat 1 May 2049
Corpus Christi Thu 17 Jun 2049
Independence Day Tue 7 Sep 2049
Our Lady of Aparecida Tue 12 Oct 2049
All Souls' Day Tue 2 Nov 2049
Republic Proclamation Day Mon 15 Nov 2049
Black Awareness Day Sat 20 Nov 2049
Christmas Day Sat 25 Dec 2049
New Year's Day Sat 1 Jan 2050
Carnival Monday Mon 21 Feb 2050
Carnival Tuesday Tue 22 Feb 2050
Good Friday Fri 8 Apr 2050
Tiradentes Thu 21 Apr 2050
Labour Day Sun 1 May 2050
Corpus Christi Thu 9 Jun 2050
Independence Day Wed 7 Sep 2050
Our Lady of Aparecida Wed 12 Oct 2050
All Souls' Day Wed 2 Nov 2050
Republic Proclamation Day Tue 15 Nov 2050
Black Awareness Day Sun 20 Nov 2050
Christmas Day Sun 25 Dec 2050
New Year's Day Sun 1 Jan 2051
Carnival Monday Mon 13 Feb 2051
Carnival Tuesday Tue 14 Feb 2051
Good Friday Fri 31 Mar 2051
Tiradentes Fri 21 Apr 2051
Labour Day Mon 1 May 2051
Corpus Christi Thu 1 Jun 2051
Independence Day Thu 7 Sep 2051
Our Lady of Aparecida Thu 12 Oct 2051
All Souls' Day Thu 2 Nov 2051
Republic Proclamation Day Wed 15 Nov 2051
Black Awareness Day Mon 20 Nov 2051
Christmas Day Mon 25 Dec 2051
New Year's Day Mon 1 Jan 2052
Carnival Monday Mon 4 Mar 2052
Carnival Tuesday Tue 5 Mar 2052
Good Friday Fri 19 Apr 2052
Tiradentes Sun 21 Apr 2052
Labour Day Wed 1 May 2052
Corpus Christi Thu 20 Jun 2052
Independence Day Sat 7 Sep 2052
Our Lady of Aparecida Sat 12 Oct 2052
All Souls' Day Sat 2 Nov 2052
Republic Proclamation Day Fri 15 Nov 2052
Black Awareness Day Wed 20 Nov 2052
Christmas Day Wed 25 Dec 2052
New Year's Day Wed 1 Jan 2053
Carnival Monday Mon 17 Feb 2053
Carnival Tuesday Tue 18 Feb 2053
Good Friday Fri 4 Apr 2053
Tiradentes Mon 21 Apr 2053
Labour Day Thu 1 May 2053
Corpus Christi Thu 5 Jun 2053
Independence Day Sun 7 Sep 2053
Our Lady of Aparecida Sun 12 Oct 2053
All Souls' Day Sun 2 Nov 2053
Republic Proclamation Day Sat 15 Nov 2053
Black Awareness Day Thu 20 Nov 2053
Christmas Day Thu 25 Dec 2053
New Year's Day Thu 1 Jan 2054
Carnival Monday Mon 9 Feb 2054
Carnival Tuesday Tue 10 Feb 2054
Good Friday Fri 27 Mar 2054
Tiradentes Tue 21 Apr 2054
Labour Day Fri 1 May 2054
Corpus Christi Thu 28 May 2054
Independence Day Mon 7 Sep 2054
Our Lady of Aparecida Mon 12 Oct 2054
All Souls' Day Mon 2 Nov 2054
Republic Proclamation Day Sun 15 Nov 2054
Black Awareness Day Fri 20 Nov 2054
Christmas Day Fri 25 Dec 2054
New Year's Day Fri 1 Jan 2055
Carnival Monday Mon 1 Mar 2055
Carnival Tuesday Tue 2 Mar 2055
Good Friday Fri 16 Apr 2055
Tiradentes Wed 21 Apr 2055
Labour Day Sat 1 May 2055
Corpus Christi Thu 17 Jun 2055
Independence Day Tue 7 Sep 2055
Our Lady of Aparecida Tue 12 Oct 2055
All Souls' Day Tue 2 Nov 2055
Republic Proclamation Day Mon 15 Nov 2055
Black Awareness Day Sat 20 Nov 2055
Christmas Day Sat 25 Dec 2055
New Year's Day Sat 1 Jan 2056
Carnival Monday Mon 14 Feb 2056
Carnival Tuesday Tue 15 Feb 2056
Good Friday Fri 31 Mar 2056
Tiradentes Fri 21 Apr 2056
Labour Day Mon 1 May 2056
Corpus Christi Thu 1 Jun 2056
Independence Day Thu 7 Sep 2056
Our Lady of Aparecida Thu 12 Oct 2056
All Souls' Day Thu 2 Nov 2056
Republic Proclamation Day Wed 15 Nov 2056
Black Awareness Day Mon 20 Nov 2056
Christmas Day Mon 25 Dec 2056
New Year's Day Mon 1 Jan 2057
Carnival Monday Mon 5 Mar 2057
Carnival Tuesday Tue 6 Mar 2057
Good Friday Fri 20 Apr 2057
Tiradentes Sat 21 Apr 2057
Labour Day Tue 1 May 2057
Corpus Christi Thu 21 Jun 2057
Independence Day Fri 7 Sep 2057
Our Lady of Aparecida Fri 12 Oct 2057
All Souls' Day Fri 2 Nov 2057
Republic Proclamation Day Thu 15 Nov 2057
Black Awareness Day Tue 20 Nov 2057
Christmas Day Tue 25 Dec 2057
New Year's Day Tue 1 Jan 2058
Carnival Monday Mon 25 Feb 2058
Carnival Tuesday Tue 26 Feb 2058
Good Friday Fri 12 Apr 2058
Tiradentes Sun 21 Apr 2058
Labour Day Wed 1 May 2058
Corpus Christi Thu 13 Jun 2058
Independence Day Sat 7 Sep 2058
Our Lady of Aparecida Sat 12 Oct 2058
All Souls' Day Sat 2 Nov 2058
Republic Proclamation Day Fri 15 Nov 2058
Black Awareness Day Wed 20 Nov 2058
Christmas Day Wed 25 Dec 2058
New Year's Day Wed 1 Jan 2059
Carnival Monday Mon 10 Feb 2059
Carnival Tuesday Tue 11 Feb 2059
Good Friday Fri 28 Mar 2059
Tiradentes Mon 21 Apr 2059
Labour Day Thu 1 May 2059
Corpus Christi Thu 29 May 2059
Independence Day Sun 7 Sep 2059
Our Lady of Aparecida Sun 12 Oct 2059
All Souls' Day Sun 2 Nov 2059
Republic Proclamation Day Sat 15 Nov 2059
Black Awareness Day Thu 20 Nov 2059
Christmas Day Thu 25 Dec 2059
New Year's Day Thu 1 Jan 2060
Carnival Monday Mon 1 Mar 2060
Carnival Tuesday Tue 2 Mar 2060
Good Friday Fri 16 Apr 2060
Tiradentes Wed 21 Apr 2060
Labour Day Sat 1 May 2060
Corpus Christi Thu 17 Jun 2060
Independence Day Tue 7 Sep 2060
Our Lady of Aparecida Tue 12 Oct 2060
All Souls' Day Tue 2 Nov 2060
Republic Proclamation Day Mon 15 Nov 2060
Black Awareness Day Sat 20 Nov 2060
Christmas Day Sat 25 Dec 2060
New Year's Day Sat 1 Jan 2061
Carnival Monday Mon 21 Feb 2061
Carnival Tuesday Tue 22 Feb 2061
Good Friday Fri 8 Apr 2061
Tiradentes Thu 21 Apr 2061
Labour Day Sun 1 May 2061
Corpus Christi Thu 9 Jun 2061
Independence Day Wed 7 Sep 2061
Our Lady of Aparecida Wed 12 Oct 2061
All Souls' Day Wed 2 Nov 2061
Republic Proclamation Day Tue 15 Nov 2061
Black Awareness Day Sun 20 Nov 2061
Christmas Day Sun 25 Dec 2061
New Year's Day Sun 1 Jan 2062
Carnival Monday Mon 6 Feb 2062
Carnival Tuesday Tue 7 Feb 2062
Good Friday Fri 24 Mar 2062
Tiradentes Fri 21 Apr 2062
Labour Day Mon 1 May 2062
Corpus Christi Thu 25 May 2062
Independence Day Thu 7 Sep 2062
Our Lady of Aparecida Thu 12 Oct 2062
All Souls' Day Thu 2 Nov 2062
Republic Proclamation Day Wed 15 Nov 2062
Black Awareness Day Mon 20 Nov 2062
Christmas Day Mon 25 Dec 2062
New Year's Day Mon 1 Jan 2063
Carnival Monday Mon 26 Feb 2063
Carnival Tuesday Tue 27 Feb 2063
Good Friday Fri 13 Apr 2063
Tiradentes Sat 21 Apr 2063
Labour Day Tue 1 May 2063
Corpus Christi Thu 14 Jun 2063
Independence Day Fri 7 Sep 2063
Our Lady of Aparecida Fri 12 Oct 2063
All Souls' Day Fri 2 Nov 2063
Republic Proclamation Day Thu 15 Nov 2063
Black Awareness Day Tue 20 Nov 2063
Christmas Day Tue 25 Dec 2063
New Year's Day Tue 1 Jan 2064
Carnival Monday Mon 18 Feb 2064
Carnival Tuesday Tue 19 Feb 2064
Good Friday Fri 4 Apr 2064
Tiradentes Mon 21 Apr 2064
Labour Day Thu 1 May 2064
Corpus Christi Thu 5 Jun 2064
Independence Day Sun 7 Sep 2064
Our Lady of Aparecida Sun 12 Oct 2064
All Souls' Day Sun 2 Nov 2064
Republic Proclamation Day Sat 15 Nov 2064
Black Awareness Day Thu 20 Nov 2064
Christmas Day Thu 25 Dec 2064
New Year's Day Thu 1 Jan 2065

Preguntas frecuentes

What counts as a business day?

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