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Mainland China Working Day Checker

Checks whether a date is an official national working day in mainland China, including weekend makeup workdays (调休上班) and multi-day holiday periods from State Council notices.

When to use

You need to know whether a specific 2024-2026 date is a working day in mainland China, especially around Spring Festival, National Day or another adjusted holiday.

Do not use when: You need a Hong Kong, Macao, Taiwan, local minority, school, employer, bank-settlement or stock-exchange calendar, or a year outside 2024-2026.

Example user requests

Is Sunday 2026-01-04 an official working day in mainland China?
2026年9月20日是休息日还是调休上班？
Will mainland China offices normally work on 2026-02-18?

Formula

adjusted weekend workday override → working; else official holiday-period override → non-working; else Monday-Friday → working; Saturday-Sunday → non-working

The annual State Council notice is transcribed into holiday periods and adjusted weekend workdays. Explicit exceptions are applied before the normal Monday-Friday rule. Every result returns the notice identifier, source URL and versioned dataset coverage.

Inputs

Parameter	Type	Unit	Required	Description
`date`	date		yes	Mainland China civil date (YYYY-MM-DD), within 2024-2026.

Outputs

Output	Type	Description
`date`	date	The checked civil date.
`weekday`	string	Gregorian weekday.
`is_working_day`	boolean	True for a regular weekday or official adjusted weekend working day.
`day_type`	string	adjusted_workday, official_holiday_period, regular_weekday or regular_weekend.
`holiday_name`	string	English holiday name when the date belongs to or compensates for a holiday; otherwise empty.
`holiday_name_zh`	string	Chinese holiday name when applicable; otherwise empty.
`status_basis`	string	Why the date is treated as working or non-working.
`jurisdiction`	string	Calendar scope.
`source_document_id`	string	Official State Council notice identifier for the date's year.
`source_published_at`	date	Publication date of the official annual notice.
`source_url`	string	Official Chinese Government source URL.
`dataset_version`	string	Version of the source-traceable mainland China work-calendar package.
`coverage_start`	date	First supported date in this package.
`coverage_end`	date	Last supported date in this package.

Example

Sunday makeup workday after 2026 New Year: {"date":"2026-01-04"} → {"weekday":"Sunday","is_working_day":true,"day_type":"adjusted_workday","holiday_name_zh":"元旦","source_document_id":"国办发明电〔2025〕7号"}

Spring Festival holiday period: {"date":"2026-02-18"} → {"is_working_day":false,"day_type":"official_holiday_period","holiday_name":"Spring Festival"}

GET https://tttkmbb.com/api/v1/calculate/china-working-day?date=2026-01-04

Machine access

API: GET https://tttkmbb.com/api/v1/calculate/china-working-day (query parameters) or POST with a JSON body {"inputs": {...}}
Schema: https://tttkmbb.com/api/v1/calculators/china-working-day · Markdown: https://tttkmbb.com/everyday/china-working-day.md · JSON definition: https://tttkmbb.com/everyday/china-working-day.json
MCP: server https://tttkmbb.com/mcp, tool check_china_working_day
OpenAPI operationId: check_china_working_day
Freshness: static. Authentication: none. Rate limit: fair use (see rate limits).

Sources

FAQ

Why can Sunday be a working day?

China's annual holiday arrangement can exchange weekend rest days for longer holiday periods. The official notice explicitly lists those makeup working days (调休上班).

Is this a stock-exchange or bank-settlement calendar?

No. It is the national public working-day schedule. Exchanges, banks, schools, employers and local jurisdictions can use different calendars.

Related calculators

Add Mainland China Working Days — Add or subtract official mainland China working days.
Mainland China Working Days Between Dates — Count official working days in a date range.
Date Difference Calculator — Calendar-day difference without public-holiday rules.