# holidays # -------- # A fast, efficient Python library for generating country, province and state # specific sets of holidays on the fly. It aims to make determining whether a # specific date is a holiday as fast and flexible as possible. # # Authors: Vacanza Team and individual contributors (see CONTRIBUTORS file) # dr-prodigy (c) 2017-2023 # ryanss (c) 2014-2017 # Website: https://github.com/vacanza/holidays # License: MIT (see LICENSE file) from datetime import date from gettext import gettext as tr from holidays.calendars.chinese import VIETNAMESE_CALENDAR from holidays.calendars.gregorian import ( JAN, FEB, APR, MAY, SEP, DEC, MON, TUE, WED, THU, FRI, SAT, SUN, _timedelta, ) from holidays.groups import ChineseCalendarHolidays, InternationalHolidays, StaticHolidays from holidays.observed_holiday_base import ( ObservedHolidayBase, ObservedRule, SAT_TO_PREV_WORKDAY, SUN_TO_NEXT_WORKDAY, SAT_SUN_TO_NEXT_WORKDAY, ) NATIONAL_DAY_RULE = ObservedRule({MON: +1, TUE: -1, WED: -1, THU: +1, FRI: -1, SAT: -1, SUN: +1}) class Vietnam(ObservedHolidayBase, ChineseCalendarHolidays, InternationalHolidays, StaticHolidays): """Vietnam holidays. References: * [Labor Code 1994 (Art. 73) (en)](https://web.archive.org/web/20160630110506/http://vbpl.vn/TW/Pages/vbpqen-toanvan.aspx?ItemID=2835) * [Labor Code 2012 (Art. 115) (en)](https://web.archive.org/web/20240706232343/http://vbpl.vn/TW/Pages/vbpqen-toanvan.aspx?ItemID=11013) * [Labor Code 2012 (Art. 115) (vi)](https://web.archive.org/web/20240917113133/https://vbpl.vn/TW/Pages/vbpq-toanvan.aspx?ItemID=27615) * [Labor Code 2019 (Art. 112) (en)](https://web.archive.org/web/20250108181808/https://vbpl.vn/TW/pages/vbpqen-toanvan.aspx?ItemID=11135) * [Labor Code 2019 (Art. 112) (vi)](https://web.archive.org/web/20250221171552/https://vbpl.vn/TW/Pages/vbpq-van-ban-goc.aspx?ItemID=139264) """ country = "VN" # %s (observed). observed_label = tr("%s (nghỉ bù)") default_language = "vi" supported_languages = ("en_US", "th", "vi") def __init__(self, *args, **kwargs): ChineseCalendarHolidays.__init__(self, calendar=VIETNAMESE_CALENDAR) InternationalHolidays.__init__(self) StaticHolidays.__init__(self, VietnamStaticHolidays) kwargs.setdefault("observed_rule", SAT_SUN_TO_NEXT_WORKDAY) kwargs.setdefault("observed_since", 1995) super().__init__(*args, **kwargs) def _add_lunar_new_year_observed(self, dt_lny: date) -> None: if self._year <= 1994: return None day_names = { # 29 of Lunar New Year. -2: tr("29 Tết"), # Fourth Day of Lunar New Year. 3: tr("Mùng bốn Tết Nguyên Đán"), # Fifth Day of Lunar New Year. 4: tr("Mùng năm Tết Nguyên Đán"), # Sixth Day of Lunar New Year. 5: tr("Mùng sáu Tết Nguyên Đán"), } for delta in range(-1, 4 if self._year >= 2013 else 3): dt = _timedelta(dt_lny, delta) dt_observed = self._get_observed_date( dt, rule=( SAT_TO_PREV_WORKDAY + SUN_TO_NEXT_WORKDAY if self._year >= 2014 else SAT_SUN_TO_NEXT_WORKDAY ), ) if dt_observed != dt: self._add_holiday( day_names[(dt_observed - dt_lny).days], # type: ignore[operator] dt_observed, ) def _populate_public_holidays(self): dts_observed = set() # New Year's Day. dts_observed.add(self._add_new_years_day(tr("Tết Dương lịch"))) # Lunar New Year's Eve. self._add_chinese_new_years_eve(tr("Giao thừa Tết Nguyên Đán")) # Lunar New Year. lny = self._add_chinese_new_years_day(tr("Tết Nguyên Đán")) # Second Day of Lunar New Year. self._add_chinese_new_years_day_two(tr("Mùng hai Tết Nguyên Đán")) # Third Day of Lunar New Year. self._add_chinese_new_years_day_three(tr("Mùng ba Tết Nguyên Đán")) if self._year >= 2013: # Fourth Day of Lunar New Year. self._add_chinese_new_years_day_four(tr("Mùng bốn Tết Nguyên Đán")) if self._year >= 2007: # Hung Kings' Commemoration Day. dts_observed.add(self._add_hung_kings_day(tr("Ngày Giỗ Tổ Hùng Vương"))) # Liberation Day/Reunification Day. dts_observed.add(self._add_holiday_apr_30(tr("Ngày Chiến thắng"))) # International Labor Day. dts_observed.add(self._add_labor_day(tr("Ngày Quốc tế Lao động"))) # National Day. name = tr("Quốc khánh") dts_observed.add(sep_2 := self._add_holiday_sep_2(name)) if self._year >= 2021: self._add_holiday(name, self._get_observed_date(sep_2, NATIONAL_DAY_RULE)) if self.observed: self._add_lunar_new_year_observed(lny) self._populate_observed(dts_observed) class VN(Vietnam): pass class VNM(Vietnam): pass class VietnamStaticHolidays: """Vietnam special holidays. References: * [2018-2019](https://web.archive.org/web/20250427182343/https://thuvienphapluat.vn/cong-van/EN/Lao-dong-Tien-luong/Official-Dispatch-6519-VPCP-KGVX-2018-national-holidays-for-public-sector-employees/387625/tieng-anh.aspx) * [2024](https://web.archive.org/web/20241002165957/https://thuvienphapluat.vn/cong-van/EN/Lao-dong-Tien-luong/Official-Dispatch-2450-VPCP-KGVX-2024-swap-of-working-days-during-the-Reunification-Day/606458/tieng-anh.aspx) """ # Date format (see strftime() Format Codes). substituted_date_format = tr("%d/%m/%Y") # Day off (substituted from %s). substituted_label = tr("Ngày nghỉ (thay cho ngày %s)") special_public_holidays = { 2010: (FEB, 19, FEB, 27), 2012: (JAN, 27, FEB, 4), 2013: (APR, 29, MAY, 4), 2014: ( (MAY, 2, APR, 26), (SEP, 1, SEP, 6), ), 2015: ( (JAN, 2, DEC, 27, 2014), (FEB, 16, FEB, 14), (APR, 29, APR, 25), ), 2018: (DEC, 31, JAN, 5, 2019), 2019: (APR, 29, MAY, 4), 2024: (APR, 29, MAY, 4), }