Usage note
“随时”表示任何时候，没有时间限制。
“Suíshí” biǎoshì rènhé shíhòu, méiyǒu shíjiān xiànzhì.
"At any time" means any time, without time limit.
Context note
我们可以随时和朋友联系，比如打电话或发消息。
Wǒmen kěyǐ suíshí hé péngyǒu liánxì, bǐrú dǎ diànhuà huò fā xiāoxi.
We can contact friends at any time, such as by calling or sending messages.
5 examples
你可以随时来我家玩。
nǐ kě yǐ suí shí lái wǒ jiā wán。
You can come to my house to play at any time.
有问题请随时问我。
yǒu wèn tí qǐng suí shí wèn wǒ。
If you have questions, please ask me at any time.
图书馆随时都可以借书。
tú shū guǎn suí shí dōu kě yǐ jiè shū。
The library can lend books at any time.
妈妈随时都在关心我。
mā ma suí shí dōu zài guān xīn wǒ。
Mom cares about me at any time.
我们随时准备出发。
wǒ men suí shí zhǔn bèi chū fā。
We are ready to leave at any time.
5 mini stories
小明随时带着他的水壶。这样他渴了就能喝水。
xiǎo míng suí shí dài zhe tā de shuǐ hú。 zhè yàng tā kě le jiù néng hē shuǐ。
Xiao Ming carries his water bottle at any time. That way he can drink when he is thirsty.
小红随时都可以画画。她的画笔总是放在桌上。
xiǎo hóng suí shí dōu kě yǐ huà huà。 tā de huà bǐ zǒng shì fàng zài zhuō shàng。
Xiao Hong can draw at any time. Her paintbrushes are always on the table.
老师随时欢迎学生提问。大家都很喜欢问问题。
lǎo shī suí shí huān yíng xué shēng tí wèn。 dà jiā dōu hěn xǐ huan wèn wèn tí。
The teacher welcomes students to ask questions at any time. Everyone likes to ask questions.
小狗随时跟着主人。它很忠诚。
xiǎo gǒu suí shí gēn zhe zhǔ rén。 tā hěn zhōng chéng。
The little dog follows its owner at any time. It is very loyal.
我们随时可以听音乐。音乐让我们开心。
wǒ men suí shí kě yǐ tīng yīn yuè。 yīn yuè ràng wǒ men kāi xīn。
We can listen to music at any time. Music makes us happy.
Mini dialogue
随时可以问
A
老师，我有问题可以随时问吗？
Lǎoshī, wǒ yǒu wèntí kěyǐ suíshí wèn ma?
Teacher, can I ask questions at any time?
B
当然，随时都可以。
Dāngrán, suíshí dōu kěyǐ.
Of course, at any time.
随时来玩
A
你随时可以来我家玩。
Nǐ suíshí kěyǐ lái wǒ jiā wán.
You can come to my house to play at any time.
B
谢谢，我随时有空就去找你。
Xièxie, wǒ suíshí yǒu kòng jiù qù zhǎo nǐ.
Thanks, I'll come find you whenever I'm free.
Related words and contrasts
similar
任何时候
rènhé shíhòu
anytime; at any time
任何时候 is a direct synonym, slightly more formal.
related
随便
suíbiàn
as one pleases; casually
随便 can imply 'at any time' in a casual sense, but also means 'whatever'.
contrast
一直
yīzhí
always; continuously
一直 means continuously, while 随时 means at any moment when needed.
contrast
准时
zhǔnshí
on time; punctual
准时 means at a specific scheduled time, contrasting with the flexibility of 随时.