Meaning of the word "until the first of the next month" in English

What does "until the first of the next month" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

until the first of the next month

US /ənˈtɪl ðə fɜrst əv ðə nɛkst mʌnθ/
UK /ənˈtɪl ðə fɜːst əv ðə nɛkst mʌnθ/
"until the first of the next month" picture

Phrase

up to the date of the first day of the following month

Example:
The promotion is valid until the first of the next month.
You have until the first of the next month to submit your application.