Chinese phrase
〜的截止日期是哪天？ 〜 de jié zhǐ rì qī shì nǎ tiān
Meaning
What day is the deadline for ___?
When to use it
It is a polite way to ask which day a deadline falls on. It can refer to registration, payment, applications, or other tasks.
Example dialogue
我想报名这次考试，报名的截止日期是哪天？ wǒ xiǎng bào míng zhè cì kǎo shì bào míng de jié zhǐ rì qī shì nǎ tiān
I would like to sign up for this exam; what day is the registration deadline?
报名的截止日期是本月二十日。 bào míng de jié zhǐ rì qī shì běn yuè èr shí rì
The registration deadline is the 20th this month.