期 qī

期 = 其 (the sound) + 月 (the time idea) — a character built for stretches of time.

The right-hand piece 月 is the same 月 as in 'month'. Here it carries the idea of time passing, not a moon in the sky. The left piece 其 is there for the sound: qí, close to qī. Put together, 期 is the character for a block of time — a date, a school term, a stretch you're waiting through. That's why it shows up in 星期, 学期, 假期 and 日期.

其 sound part — qí, close to qī 月 time part — same 月 as in 'month'

Common Usage & Traps

  • 星期 (xīngqī) — week
  • 日期 (rìqī) — date (the calendar kind)
  • 学期 (xuéqī) — school term / semester
  • 假期 (jiàqī) — holiday period, break
  • 期待 (qīdài) — to look forward to
  • 星期七 星期天 / 星期日 / 周日

    Days run 星期一 to 星期六. Sunday breaks the pattern. There is no 星期七.

  • 星期末 周末

    星期 never teams up with 末. The weekend is only 周末.

  • 我期待你 我期待你的回复 / 我期待见到你

    期待 waits for a thing or an event to happen, not for a bare person. You're excited about something involving them.

Do I say 星期一 or 周一 for days of the week?

Both work. 周 is the short everyday form — but Sunday is 星期天 or 周日, never 星期七.

星期 and 周 both mean 'week', and both build weekdays: 星期一 or 周一, 星期六 or 周六. 周 is the shorter, punchier pick — that's why you always see 周末, 上周, 下周, and news headlines full of 周. 星期 is slightly more spoken and it's the form textbooks teach first. The one hard rule: Sunday is 星期天 or 星期日, or 周日 in speech. 星期七 does not exist. And the weekend is only ever 周末, never 星期末.
DimensionNaturalAvoid
Sunday星期天 / 星期日 / 周日星期七
The weekend周末星期末
Last week / next week上周 / 下周 / 上个星期上个周 (clunky, natives dodge it)

Can I say 我期待你 when I mean 'I'm waiting for you'?

No. 等 is plain waiting with no feeling. 期待 means you're excited for something to happen.

等 is neutral waiting, zero emotion attached: 我在等公交车, 我在等朋友, 我在等你的回复. 期待 is 'looking forward to' — there's hope and excitement baked in, so it needs something good coming your way: 期待假期, 期待见到你, 期待你的回复. That's exactly why 我期待你 sounds off. You're not excited about a person standing there; you're excited about something involving them. And nobody 期待 a bus, unless the bus is somehow a gift.
DimensionNaturalAvoid
Waiting for the bus我在等公交车。我在期待公交车。
Excited about a trip我很期待这次旅行。我很等这次旅行。
Waiting for a friend我在等朋友。我在期待朋友。

If I want today's date, do I ask 今天几号 or 今天星期几?

几号 gives the number on the calendar. 星期几 gives the day of the week.

今天几号 asks for the calendar number: 三月八号. 今天星期几 asks for the day of the week: 星期三. Learners mix these up and answer the wrong question — someone asks 今天几号 and gets 星期三 back. Want the whole thing? 今天几月几号? Notice the 号 never gets dropped. On a form or in formal writing, 日 replaces 号: 2025年3月8日. And 日期 is simply the noun 'date' — 出发日期, 填上日期.
DimensionNaturalAvoid
Asking the calendar date今天几月几号?今天几月几? (missing 号)
Asking the weekday今天星期几?今天几星期?
Date on a form2025年3月8日2025年3月8号 (fine out loud, odd on paper)

Appears in Stories 11 stories

《星期七》 The Week Without Seven
HSK 1 ~2 min read 82 chars
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Before you read, try clapping the rhythm. This poem introduces the days of the week and a fun secret: Chinese has two names for Sunday, but no 'Week Seven'!

  • 星期一 后 星期二 。

  • 星期四 前 星期三 。

  • 星期五 和 星期六 。

  • 星期 没有“ 星期七 ”,还有一天 星期日 。

  • 星期天 , 星期日 ,两个名字都可以。

  • 你想知道 星期 几,可以问他 星期 几。

《问问题》 Asking Questions
HSK 1 ~2 min read 107 chars
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Before you read, think about the questions you ask every day. This simple poem shows you how to ask age, price, time, and more in friendly Chinese.

  • 问 日期 ,几月几?

  • 问 星期 , 星期几 ?

《吃的东西和喝的东西》 Buying Food and Drinks
HSK 1 ~4 min read 305 chars
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This is a short dialogue about a shopping trip. A woman buys many things, including food, drinks, furniture, and pet food, while her boyfriend reminds her not to overspend.

  • 我:“上个 星期天 ,你说你喜欢他们的那个桌子和那个电脑椅。

  • 那些桌子、椅子什么的,这个 星期 都便宜了,都不贵。”

《一二三(2)》 Counting Days and Rhymes
HSK 1 ~2 min read 84 chars
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This playful poem turns numbers into a rhythm of daily life. As you read, practice counting, days of the week, and common time words in a fun, memorable way.

  • 一二三四五,今天 星期五 。

  • 六七八九十,昨天 星期四 ;十四是十四,四十是四十。

《一到十二月》 Twelve Months of Love
HSK 1 ~2 min read 108 chars
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Welcome! This short poem helps you practice the months, weekdays, and mealtimes in Chinese. Read it aloud and notice the rhythm. You already know many of these words!

  • 星期一 到六,天天喜欢你。

  • 星期日 和天,日日和爱人,超市买菜米,回家做饭忙。

《大飞机》 The Big Airplane
HSK 1 ~2 min read 97 chars
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Read about a work trip to Beijing where a group of colleagues takes a very large airplane. Practice weather words and actions in a simple travel story.

  • 上个 星期 ,我们公司的六个人去北京开会。

《米老师的一天》 A Doctor's Daily Routine
HSK 1 ~3 min read 216 chars
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Meet Dr. Mi, a doctor and teacher at Sichuan University. This simple HSK 1 story shows his daily routine from morning to night, helping you learn time expressions and everyday activities.

  • 他 星期一 到 星期五 都要上班。

《一二三 住医院》 Hospital Days, Pricey Plates
HSK 1 ~2 min read 107 chars
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Follow a traveler's unexpected hospital stay in China, where counting days and costs becomes practical learning. Practice numbers, dates, food prices, and simple descriptions of a doctor and room.

  • 休息两 星期 ,七天住医院医生人很好,房间大漂亮。

《是谁要去玩?》 A Hot Day at School
HSK 1 ~4 min read 261 chars
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Join a family on a sweltering Beijing Sunday as a boy learns a funny lesson about playing outside in the summer heat. Perfect for HSK 1 learners.

  • 今天是 星期天 。

《你误会方便面了吗?》 Are Instant Noodles Misunderstood?
HSK 6 ~10 min read 1171 chars
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Think instant noodles are unhealthy? This HSK 6 article challenges common myths and reveals surprising facts about nutrition, oil, and salt in this convenient food.

  • 误会一:方便面有毒很多人想当然认为,方便面 保质期 很长,不会坏,原因一定是因为里面“有东西”,有毒!

《三星在哪里?》 Fun Rap to learn Chinese: Where Is \"Samsung\"?
HSK 1 ~1 min read 72 chars
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Ever noticed how similar Chinese words can be? This rhyme plays with place names and homophones, from schools to hotels, even throwing in Samsung's origin. A lighthearted way to boost your word power.

  • 星期 哪七星?

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