白天 bái tiān
“daytime; during the day; day”
time word2021 list level 1Measure word 个
新HSK等级2025 HSK 3.0 syllabus level
白天 appears in the November 2025 exam syllabus in the following numbered entry. Levels refer to the listed reading and use, not every meaning.
- Entry 5: 白天 báitiān — Level 1; official annotation 1 (名). PDF page 80
Separate from the HSK 2.0 and 2021 list labels above. Compare the three lists.
用法How to use 白天
白天 is a noun meaning 'daytime, during the day'. It commonly appears as a time word before the verb, as in 白天上班 and 白天上课, and contrasts with 晚上. Use 白天的时候 when you need a longer phrase meaning 'during the daytime'.
例句Example sentences
- 白天他很忙，晚上才有时间。bái tiān tā hěn máng, wǎn shàng cái yǒu shí jiān.He is very busy during the day and only has time in the evening.
- 我们白天上课，晚上复习。wǒ men bái tiān shàng kè, wǎn shàng fù xí.We have classes during the day and review in the evening.
- 白天阳光很强，出门要戴帽子。bái tiān yáng guāng hěn qiáng, chū mén yào dài mào zi.The sunlight is strong during the day, so wear a hat when you go out.
易混词Easily confused
白天vs一天
一天 means 'one day/a day' as a whole period; 白天 refers only to the daytime part of a day, not the whole 24 hours.