Any-Time-Anytime | Commonly Confused Words

Any time

/ˈɛni taɪm/

Used to indicate that something can occur whenever or without restrictions

You can call me any time if you need help.Feel free to drop by any time for coffee.Our team welcomes feedback at any time of the year.

/ˈenitaɪm/

Whenever or at any time without restriction

We can meet anytime you're available.Call me anytime; I'm here to answer your questions.You're welcome to join us anytime.

This word has no antonyms

Remember that any time is two words, which makes it more formal in writing.
Anytime is a single word, which is less formal and often used in casual writing or speech.
You can check if you mean any time by replacing it with at any specific time; if it fits, use any time.
If you mean whenever or as a one-word response, use anytime.
When unsure, consider if the use is more formal or casual; any time suits formal contexts better.