Chinese Date Format: How Dates Are Written in China (2026年7月20日 Explained)
China writes dates year-month-day (2026年7月20日). The characters 年月日, contract/invoice date conventions, weekday names, and how to avoid US/EU format ambiguity.
China writes dates year-month-day (2026年7月20日). The characters 年月日, contract/invoice date conventions, weekday names, and how to avoid US/EU format ambiguity.
In China, dates are written from the largest unit down to the smallest: year first, then month, then day. Today’s date, July 20, 2026, is 2026年7月20日 in characters and 2026-07-20 in the all-numeric standard form. Once you know the three characters 年 (year), 月 (month) and 日 (day), you can read the date on any mainland contract, invoice or ID card without guessing.
Each number is followed by its label, so the date reads like a sentence: 2026年7月20日 is literally “2026 year, 7 month, 20 day.” There is no word like “July” to memorize — months are just numbered 1 to 12, so 7月 means “month seven.” The year is read digit by digit: 2026 is èr líng èr liù (“two zero two six”), never “twenty twenty-six.” When the characters label each field, leading zeroes are optional — 7月 rather than 07月 — while the pure numeric form keeps them: 2026-07-20 (source).
| English | Chinese characters | All-numeric |
|---|---|---|
| July 20, 2026 | 2026年7月20日 | 2026-07-20 |
| January 5, 2026 | 2026年1月5日 | 2026-01-05 |
| June 21, 2023 | 2023年6月21日 | 2023-06-21 |
| Monday, July 20, 2026 | 2026年7月20日（星期一） | weekday goes in parentheses |
On certificates and formal invitations you may see the numerals themselves written as Chinese characters — 二〇二六年七月二十日 — but Arabic numerals are the norm in everyday documents.
| Region | Order | March 4, 2026 written out |
|---|---|---|
| Mainland China | Year–Month–Day | 2026年3月4日 / 2026-03-04 |
| United States | Month–Day–Year | 03/04/2026 |
| United Kingdom | Day–Month–Year | 04/03/2026 |
| Germany | Day.Month.Year | 04.03.2026 |
An American who receives “03/04/2026” from a London office reads it a month wrong. The Chinese format can’t be misread: the string opens with a four-digit year, so 2026-03-04 can only be year-month-day, and in the character form every field carries its own label (source).
The numeric form isn’t just habit. China’s national standard GB/T 7408.1-2023 adopts ISO 8601, fixing yyyy-mm-dd for dates in information interchange. Worth being precise about scope: the standard governs data and documents exchanged between systems — no law dictates how a person jots a date on a sticky note. People write big-to-small anyway, because that’s how the language itself orders time.
We’re a Chinese agency, and we sign, stamp and file this paperwork every week. Here’s what shows up in practice:
Contracts (合同). The date pattern is YYYY年MM月DD日 throughout, and in our experience nearly every mainland contract ends its signature block with a pre-printed fill-in line — ____年____月____日 — that each party completes by hand next to their company chop.
Invoices (发票, fapiao). The issue date is a mandatory field labeled 开票日期 (source). In the e-fapiao data that tax software exchanges, the same date travels as a bare eight-digit string like 20260720.
ID cards (身份证). The printed date of birth runs year-first, and the birth date is also baked into the 18-digit ID number itself — digits 7 through 14 encode it as YYYYMMDD (source). Handy for verification work:
Take 星期 (xīngqī, “week”), add a number, and you have a weekday — the count starts on Monday. In writing, 周 (zhōu) is a compact alternative; colloquially you’ll also hear 礼拜 (lǐbài).
| English | 星期 form | 周 form |
|---|---|---|
| Monday | 星期一 | 周一 |
| Tuesday | 星期二 | 周二 |
| Wednesday | 星期三 | 周三 |
| Thursday | 星期四 | 周四 |
| Friday | 星期五 | 周五 |
| Saturday | 星期六 | 周六 |
| Sunday | 星期日 / 星期天 | 周日 |
The one exception to the counting logic: Sunday is never 星期七. It’s 星期日 in formal writing or 星期天 in speech (source).
Everyday paperwork — contracts, invoices, IDs, train tickets — runs on the Gregorian calendar, called 公历 (gōnglì). The traditional lunisolar calendar, 农历 (nónglì), lives on for festivals and for older generations’ birthdays. That’s why Chinese holidays drift on your calendar: Mid-Autumn Festival is fixed on the 15th day of the 8th lunar month, which lands anywhere between September 7 and October 8 — September 25 in 2026 (source). You’ll never see a lunar date on a business document, but your Chinese supplier’s holiday closures shift every year, so check the new dates each January.
Related reading: China Address Format