workdays

判断一天是不是法定节假日/法定工作日（查看节假日安排）

Utilities for work days in Moment. (Western workweeks only.)

Networkdays functions ... including `networkdays` excel like function with no dependencies (no NumPy)

IsDayOff API for .NET

A tiny c# utility for calculating work days and work time

Extended DateTime and Date classes (extending DateTimeImmutable), DateTimeRange and DateRange classes

Czech Workdays, Holidays and Shopping Days

一个基于day.js的工作日插件

Генератор графика работы в файл xlsx / Workdasy spreadsheet generator

查看某天是否为节假日(日本)

Cloud-ready customizable project for calculating business days, holidays, and work schedules.

Open dataset of public holidays for 30 European countries — 25 languages, JSON + CSV, MIT-licensed.

查看某天是否为节假日(澳洲)

Managing & Summarizing schedules: Enter all working days along with their working hours, and receive a summarized table that groups days with identical hours into ‘ranges of days,’ ‘lists of days,’ or formats such as ‘even/odd days,’ alongside any remaining days with different hours.

Calculation of working days between two dates in C#

Праздничные дни по производственному календарю с 1991 по 2026 гг.

Holiday API — independent third-party profile of a public API surface, by API Evangelist. Holiday API is a commercial reference-data service that delivers verified public holidays, observances, country and language metadata, and workday calculations for 250 countries and 3,680+ state/province subdivisions in 100+ languages.