今天是星期一。

It's Monday.

It's Monday today.

Source: Tatoeba

Sentence Composition

1 今天 jīntiān
  1. today
  2. the present time; now
=2 是 shì
  1. to be (followed by substantives only)
  2. correct; right; true
  3. (respectful acknowledgement of a command) very well
  4. (adverb for emphatic assertion)
=2 是 shì variant of 是 shì
=3 星期一 Xīngqīyī Monday
=3 星期一 xīngqīyī Monday