Tide may change between sunrise and sunset (7)

I believe the answer is:

daytime

I'm a little stuck... Click here to teach me more about this clue!

'between sunrise and sunset' is the definition.
I can't tell whether this defines the answer.

'tide may change' is the wordplay.
'change' indicates an anagram.
'tide'+'may'='tidemay'
'tidemay' anagrammed gives 'DAYTIME'.

Can you help me to learn more?

(Other definitions for daytime that I've seen before include "Sunrise to sunset" , "Hours of light" , "Period between dawn and dusk" , ""The Outcome of the Enlightenment"?" , "May diet (anag.)" .)

I've seen this clue in The Globe and Mail.

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