"Today is Sunday."

Translation: 今天星期天。

[zuo3ge1]

It accepted 今天星期天 for me, but does it sound weird to not include 是?

[laseryohanna]

I also am interested in 是 and when to use it. Thanks for posting.

[Lyfae]

Both are correct, I think. The use of 是 just makes the sentence more "complete", but it's not necessary, especially when speaking.

[Michael97198]

I just asked asked my chinese friend , he said it not a good sentence without 是 but acceptable.

[YiiMeng]

In a proper written sentence, 是 would be ideal. However, while speaking, it's more "convenient" to just say 今天星期天, unless you would want to emphasis that "Today IS a Sunday".

[ShokoladeFanatik]

I think no one ever said that sentence without 是. (Source: Me and my family we speak chinese since we're chinese)

[jamesjiao]

I absolutely would add 是 . Does'nt feel right without it.

[SophiaWang439528]

Doesn't 星期日 also mean Sunday? Why is it not accepted as an answer?

[deactivated user]

星期日 is also Sunday. Report it

[kurzeme]

it does and must be accepted

[alex.maslov]

Accepted

[Dennis385858]

Still not accepted on December 22nd 2018. I have reported it.

[PopNTod]

I appreciate that Duolingo is at least expanding itself to accepting time travel reports on December 22 when it's only November 22. Screw learning this language, teach me your time-bending ways, Dennis!!
Har har. Just playing. I'm sure you meant November.

[Dennis385858]

Facepalm Of course I meant November. Thanks.

[HuaVanKhai]

Reported. Duolingo is trolling...

[RuciGluci]

report it

[DavidTvedt]

周日 what the heck????

[laseryohanna]

I am having a difficulty knowing when to add 是 for“is” and when adding it is wrong. I usually think it and then have to drop it for the exercise. Then there is this one where it seems to be required. Any help or guidance on this?

[Fann54147]

Same for me. It should accept both forms.

[Sayan_Tsy]

What's the difference between "星期日", "星期天" and"周日"?

[JarvisGami]

星期天 is more common in Mandarin, 星期日 is more common in Cantongnese, 周日 is more common in writing

[AsitGanguly]

These characters for Sunday were not introduced, How do they sound! How many different combinations are there for Sunday!!

[ZhiLi83]

Eventhough many English speakers tend to overly use the 是 when speaking, I do think in this case it should have been used and accepted.
For those of you who are interested, check out the youtube channel "Everyday Chinese". There is also an accompanying website with loads of free lessons to download and it has helped me immensely since I started studying Mandarin about three years ago. I use Duolingo and that channel exclusively as supplemental learning tools. Good luck everyone!

[talkpissin]

if previous questions are anything to go by, "今天星期天" should be accepted.

[JoshuaVanMullem]

Yes this is correct

[DebbieBail8]

今天是星期天 not accepted. That's definitely a mistake.

[p40sZFlP]

No sound for Sunday will report 10-16-2018

[Sue950221]

Why is ”今天星期日” not an acceptable answer, also?

[TanKS5202Apr2020]

Answer should be 今天是。。。?

[Avertzy22]

why is there no "是" ?

[almahi10]

Totally confused why the answer without (shi) is accepted but it's not likewise in questions form

[TTChaos]

Surely the answer should be 今天是星期天？

[CharlieCui2]

Correct!!!

[huseyintekler]

今天是星期天，不对吗？app 真好但翻译很差。可以说，今天＇是星期天，周日，礼拜日，礼拜天... /是星期天, 周日... all are right.

[sturgis15]

this set of characters is not available for the answer "today is sunday"

[CharlieCui2]

Its also missing a shi (is) in the sentence

[Shimanchu2006]

Why no "shi"?
:/

[Macarena984560]

Shouldn't it have 是 in the sentence?

[theteenoctavian]

[今天星期天]
[jīntiān xīngqítiān]

[Heidi453404]

I found a site to help but it still bothered my that they threw that word in without previously teaching it.
https://blog.speechling.com/5-different-techniques-to-indicate-time-and-tense-in-chinese-speech-and-writing/

[BrunoBeaug]

Re should be accepted for sunday

[LukHeiMan]

is在中文來說是[是]的意思，在句子需要加回

[alisha_barnes]

Interesting no 是. I wonder why?

[MHart521347]

Why does it say "jin tian xing chi r" why does it not gave shi in it?

[Dennis385858]

MHart521347 Please see the post by Fekkezaum below which is an excellent summary of the issue.

[Fekkezaum]

I'm a bit confused. Is 是 optional for affirmative statements but mandatory for negative statements?

See what I've noticed Duolingo mark as correct and incorrect

今天星期天 - Today is Sunday (accepted)

今天是星期天 - Today is Sunday (accepted)

今天不是星期天 - Today is not Sunday (accepted)

今天不星期天 - Today is not Sunday (marked as incorrect. is it?)

[Dennis385858]

Fekkezaum you are not confused at all, in fact you are absolutely correct. 是 is mandatory for negative statements.

So all the examples you gave above are correct except for the last one which is wrong.