o'clock

o'clock /əˈklɒk $ əˈklɑːk/ S1 W3 adverbadv

one o'clock/two o'clock etc TMCone of the times when the clock shows the exact hour as a number from 1 to 12 1点钟/2点钟等

It’s already 9 o'clock.

已经9点钟了。

The meeting is at 10 o'clock.

开会时间是10点钟。

Do not use o'clock when mentioning minutes or parts of an hour: ten past nine (NOT ten past nine o'clock) | half past one (NOT half past one o'clock). Do not use o'clock when writing the time in the form 1.00,2.00 etc.

不要用 o'clock 表达分钟或非整点时间: ten past nine (不说 half past nine o'clock) 9点10分 | half past one (不说 half past one o'clock) 1点半. 把时间写成1.00,2.00等形式时，不要用 o'clock.

Examples from the Corpus

o'clock• It's 5 o'clock.• It's exactly 10 o'clock.

Origin o'clock

(1400-1500) of the clock

o'clock adverbadv

Chinese

Corpus