Days of the week

Monday 星期一 xīng qī yī
Tuesday 星期二 xīng qī èr
Wednesday 星期三 xīng qī sān
Thursday 星期四 xīng qī sì
Friday 星期五 xīng qī wǔ
Saturday 星期六 xīng qī liù
Sunday 星期日 xīng qī rì
Sunday星期天 xīng qī tiān

Notes:

•星期(xīng qī) means week.
•A week is a 星期, literally a “star period”.
•Sunday is slightly different, giving us two choices: 星期日 and 星期天.
•There are two other ways to express weeks and days, they are 周(zhōu) and 礼拜(lǐ bài). Both of these have the day number appended in the same way as for 星期.
•For weekend, we say 周末 (zhōu mò).