Date & Time Expressions — I can recognize and use common number patterns for phone numbers, addresses, and prices in supported contexts.

Numbers sit at the very center of Chinese civilization's relationship with language, governance, and commerce. The Chinese numeral system, one of the oldest decimal counting systems still in continuous use, shaped how dates, prices, and addresses are spoken and written in modern Mandarin. Understanding the historical trajectory of these conventions reveals why Mandarin organizes numerical information in a large-to-small hierarchical order that mirrors classical Chinese logic — from the broadest category down to the most specific detail. This ordering principle applies uniformly across dates (year → month → day), times (hour → minute), addresses (province → city → street → number), and even telephone numbers when recited digit by digit.

The central question this lesson addresses is pragmatic: How do Mandarin speakers encode and decode the numbers they encounter dozens of times daily — telling the time, stating a date, giving an address, bargaining over a price, or reciting a phone number? While the individual digits (零 through 九) may seem straightforward, each context imposes its own structural template, special vocabulary, and phonetic conventions that a learner must internalize to function in real-world Mandarin.

Before diving into specific contexts, it is essential to establish the foundational rules that govern how numbers behave grammatically and phonetically in Mandarin. Five core principles underpin every number pattern you will encounter — from a simple date to an eleven-digit mobile number.

The following diagram illustrates the five major number-pattern templates side by side. Each template shows the structural slots you fill with digits and the Mandarin unit markers that connect them. Notice how every template follows the large-to-small principle — the broadest category always appears first, narrowing progressively toward the most specific element.

As the diagram makes clear, the templates share a common architecture: digits occupy predictable slots, and Mandarin unit markers act as delimiters that tell the listener which category of information is being communicated. The phone-number template is the sole exception to the compound-number reading rule — each digit is spoken individually rather than grouped into tens, hundreds, or thousands. This distinction is a frequent source of error for learners who attempt to read a phone number as if it were a mathematical quantity.

Dates: 年 (nián) · 月 (yuè) · 日/号 (rì/hào)

Mandarin dates follow an unambiguous descending hierarchy: year → month → day. The year is read digit by digit — 2025 is pronounced 二零二五 (èr líng èr wǔ), not 两千零二十五, in the context of stating a calendar year. The month is a cardinal number from 1 to 12 followed by 月, and the day is a cardinal number followed by 日 in formal/written contexts or 号 (hào) in spoken Mandarin. Days of the week use 星期 (xīngqī) plus a number from 一 through 六 for Monday through Saturday, with Sunday expressed as 星期天 (xīngqītiān) or 星期日 (xīngqīrì).

Times: 点 (diǎn) · 分 (fēn) · 半 (bàn)

Time expressions typically begin with a period-of-day marker — 上午 (shàngwǔ) for morning or 下午 (xiàwǔ) for afternoon — placed before the hour. The hour is followed by 点 (diǎn, "o'clock"), and the minutes by 分 (fēn). When the minute value is below ten, 零 is inserted as a placeholder: 3:05 becomes 三点零五分. The half-hour is elegantly expressed as 半 (bàn): 3:30 is 三点半 (sān diǎn bàn), and the particle 分 is dropped. A quarter past uses 一刻 (yí kè), and a quarter to uses 差一刻 (chà yí kè) before the next hour, though digital-style readings (e.g., 两点四十五分) are increasingly common.

Phone Numbers: Digit-by-Digit Recitation

Chinese mobile numbers follow the pattern 1XX-XXXX-XXXX (eleven digits total, always beginning with 1). Each digit is read individually. The crucial phonetic rule is that 一 (yī) is replaced by 幺 (yāo) to distinguish it from 七 (qī) in rapid speech. Landline numbers in major cities are typically eight digits, sometimes preceded by a city area code (e.g., 010 for Beijing). Speakers often group digits into rhythmic clusters of three or four when reciting, pausing briefly between clusters for clarity.

Addresses: Geographic Nesting

Chinese addresses reverse the Western order entirely, beginning with the broadest geographic scope and telescoping inward: country → province → city → district → street → building number → floor → room. Street numbers use 号 (hào) as a suffix (e.g., 27号 = number 27). Building or apartment identifiers often combine floor numbers and room numbers (e.g., 5楼302室 = 5th floor, room 302). When reciting an address aloud, the building and room numbers may be read digit by digit, especially if they are long.

Prices: 元 · 角 · 分 and Their Colloquial Twins

The Renminbi's three denominations map neatly onto a decimal structure: one 元 (yuán) equals ten 角 (jiǎo), and one 角 equals ten 分 (fēn). In everyday conversation, speakers almost universally substitute 块 (kuài) for 元 and 毛 (máo) for 角; the 分 denomination is now so rarely used that it is often omitted. When the price ends in a round number of 角, the 角/毛 unit can be dropped entirely: ¥35.50 is typically spoken as 三十五块五 (sānshíwǔ kuài wǔ), not 三十五块五毛零分. If only whole yuan are involved, the final unit is still spoken: 十块 (shí kuài), not simply 十.

This section provides a comprehensive reference for the individual digits and the special phonetic and grammatical rules that arise in each number-pattern context. The table below consolidates the standard digits alongside their contextual variants.

Imagine you are arranging to meet a friend at a restaurant in Beijing. You need to communicate the date and time, confirm the restaurant's address, share your phone number, and discuss the estimated price per person. Let us walk through each expression step by step.

A direct comparison between Mandarin and English number conventions exposes the transfer errors most likely to trip up English-speaking learners. The following table highlights the structural divergences and convergences across the five major contexts.

The number patterns covered in this lesson form the foundation for more complex Mandarin numerical expressions. As you advance, you will encounter large-number grouping (万 wàn for ten-thousands, 亿 yì for hundred-millions), percentage and fraction expressions, ordinal constructions with 第 (dì), and formal financial numerals (大写 dàxiě) used on checks and contracts. The table below maps today's foundational concepts to their advanced counterparts.

One particularly important extension involves the 万 (wàn) grouping system. English groups large numbers in thousands (1,000 → 1,000,000 → 1,000,000,000), but Mandarin groups in ten-thousands: 10,000 = 一万, 100,000,000 = 一亿. This means that a price like ¥1,500,000 is spoken as 一百五十万 (yì bǎi wǔshí wàn), not as "one million five hundred thousand" translated word for word. Mastering the basic price template in this lesson prepares you to scale up to these larger figures, which appear routinely in real estate, salary discussions, and news reports about economic data.