Knowing how to talk about time is very useful! Here are three essential words for your daily conversation:

• 今天 (jīntiān): today

• 今天很好。(Jīntiān hěn hǎo.) - Today is very good.

• 明天 (míngtiān): tomorrow

• 明天见！(Míngtiān jiàn!) - See you tomorrow!

• 昨天 (zuótiān): yesterday

• 昨天我工作了。(Zuótiān wǒ gōngzuò le.) - I worked yesterday.

You can easily combine these with other words you know. For example, 今天星期一吗？(Jīntiān xīngqīyī ma?) - Is today Monday?