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Business Day Calculator

Business Days in September 2023 for China

September 2023 has 21 working days under the Chinese national holiday calendar. September 2023 contains no Chinese national holidays on a weekday. The month covers 30 calendar days, of which 9 are Saturday and Sunday. That count drives invoice cycles, payroll runs, and any contract that defines deadlines as a number of working days in China.

working days

21

Calendar Days

30

Weekend Days

9

public holidays

0

Work Weeks

4.2

September 2023 business day calendar
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public holidays in September 2023

No Chinese national holidays fall on a weekday in September 2023, so banks and China financial markets keep their regular schedule for the entire month.

China September deadlines

Mid-Autumn Festival (中秋节) typically falls in September (lunar calendar) and closes banks for 3 days. Monthly VAT and CIT for August are due September 15. Some years the festival is adjacent to the October Golden Week creating a combined extended closure. PBoC LPR decision falls on the 20th. Q3 audit fieldwork begins.

Day-of-Week Distribution

The count of each weekday in September 2023. Useful for shift scheduling, weekly recurring billing, and any rota that depends on a specific day of the week landing in-month.

DayCount
Monday4
Tuesday4
Wednesday4
Thursday4
Friday5
Saturday5
Sunday4

China reporting cycles and business-day rules

Chinese business-day cycles align with STA (State Taxation Administration) monthly VAT and corporate income tax deposits due by the 15th of the following month for most regimes, plus annual corporate income tax returns due May 31 for calendar-year filers and the annual Individual Income Tax (IIT) reconciliation from March 1 to June 30. The PBoC operates CNAPS as the high-value RTGS system on bank business days; CIPS handles cross-border RMB settlement. Spring Festival and National Day Golden Weeks each close banks and exchanges for 7-8 days, with State Council-gazetted make-up working Saturdays surrounding each holiday. SAFE (State Administration of Foreign Exchange) governs capital-account flows and approval windows.

September 2023 working days compared by country

Working-day counts vary across countries because each country observes its own public holidays. The table below puts China alongside the other ten supported holiday calendars for September 2023.

How September 2023 compares year over year

September 2022 had 22 working days, so September 2023 has 1 fewer working day year over year. On the surrounding months, August 2023 has 23 working days and October 2023 has 22. Looking forward, September 2024 has 19 working days under the same Chinese national holiday calendar.

Using this calculator in China

A Shanghai treasury operator uses the 21-day September 2023 count to align PBoC CNAPS (China National Advanced Payment System) RTGS settlement with STA (State Taxation Administration) monthly VAT cutoffs on the 15th. A Shenzhen tech-park controller uses business-day math to track Shanghai/Shenzhen Stock Exchange listed-entity quarterly disclosures and the Spring Festival and National Day Golden Week closures. A Beijing trade-services firm uses working-day counts to align SAFE (State Administration of Foreign Exchange) capital-flow reporting with cross-border RMB settlement via CIPS.

For informational purposes only

This calculator provides general estimates based on business day counting rules. It does not constitute legal advice. Deadlines in legal, regulatory, or contractual matters may be subject to jurisdiction-specific rules, court orders, or statutory exceptions. Always verify critical deadlines with a qualified professional.

Frequently Asked Questions

How many business days are in September 2023 for Chinese national?
September 2023 has 21 working days under the Chinese national holiday calendar. The month spans 30 calendar days, of which 9 fall on a weekend and 0 are Chinese national holidays that lands on a weekday. The remaining 21 weekdays are countable as working days for invoicing, deadline tracking, and contract math.
Which China holidays affect September 2023?
September 2023 contains no Chinese national holidays that fall on a weekday. Banks, the central clearing system, and China financial markets keep their normal schedule throughout the month under this calculator's national-only holiday set.
Why do Chinese Golden Week closures shift adjacent weekends?
China's State Council gazettes annual public holiday closures including make-up working Saturdays and Sundays surrounding the multi-day Golden Week holidays (Spring Festival in late January or February, and National Day October 1-7). For example, to extend National Day from 3 statutory days to a 7-day closure, the surrounding Saturday and Sunday are shifted to be working days, with the holiday extended into the adjacent week. This calculator's Chinese data lists the gazetted holiday dates as non-business days but does not separately add make-up Saturdays back as working days, which is the conservative B2B count. For payroll and overtime computations that depend on make-up workdays, consult the State Council's annual notice.
Are Hong Kong and Macau covered by this Chinese calendar?
No. Hong Kong (SAR) and Macau (SAR) operate under their own Basic Laws and have separate public holiday calendars distinct from mainland China. Hong Kong observes 17 statutory holidays including Christmas Day and Chinese New Year, while Macau observes 22 including Catholic and Portuguese-tradition days. This calculator's China data is for the mainland (excluding the SARs and Taiwan). For Hong Kong or Macau cross-border invoicing, layer the relevant SAR dates into the Advanced options.
Why does the business-day count vary year to year?
Two things shift the monthly count for China. First, the day of the week the first of the month lands on changes the count of each weekday. Second, Chinese national holidays anchored to a fixed date shift their weekday across years. Some years a fixed-date holiday lands on a weekend; some countries shift the observance to an adjacent weekday and some absorb it into the weekend. September 2022 had 22 working days, so September 2023 has 1 fewer working day year over year.

Related months and resources