"It is Wednesday."

Translation: Είναι Τετάρτη.

[wreckyn]

my dudes

[Christina473851]

I am confused when to use the definite article before days, time of the day, and actual times of day. Is there a simple rule?

[l_LOVE_CHlCKENS]

Not sure exactly what situation you're referring to, but maybe this will help:

My understanding is... In English you are able to say

"tomorrow afternoon"

But really what you are saying is "tomorrow in the afternoon." sometimes we omit those words.

Αύριο (tomorrow) το (in the) απόγευμα (afternoon)

[l_LOVE_CHlCKENS]

In this example, you wouldn't say it is "in the Wednesday" so no definite article is needed

[Lng52-._]

Could you use "Αυτή" or "Αυτό" preceding Είναι?

[troll1995]

Neither. You could only use Η μέρα είναι... but no native does that.