"Teachers day" versus "Teachers' day"

[Tom]

Hi

Could you please tell me which one of the following is correct?

"Teachers day" and "Teachers' day"

Maybe both versions are correct?

Tom

[Bara]

Hi

I would go for the 2nd one. Teachers' day.

Baraa

[Yankee]

.
Have you googled them, Tom? ;)
.
You'll find:

Teachers' Day
Teachers Day
Teacher's Day

I'd nominate the first one as the most grammatical. :lol:
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