Need help with formal invitation wording!

Here’s what google suggests:

“Use the following timeline for indicating which time of day your event will be held…
Morning 12:00 AM – 11:59 AM
Afternoon 12:00 PM – 5:59 PM
Evening 6:00 PM – 11:59 PM

Formal Wedding Time
When writing the time out for a wedding, you can only use whole or half hours – there are no quarter hours or three-quarter hours.

example:
at half past four in the afternoon
at four o’clock in the afternoon
*Note, if you are getting married at 4:15, you should list the wedding time as 4:00 PM. However, if you feel you must list the quarter hour time, you can list it as “at one-quarter past four in the afternoon”.”

http://www.invitationbox.com/how-to-write-wedding-invitations-etiquette.html

I like the wording super formal so i would probably write
”quarter to four o’clock in the afternoon”

Truthfully I would write half past four

I'm lazy and would change my time to 330 or 4.

Writting it as 3:30 would be best if it where me.

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Same- or put half past 3 o'clock. That way people will be more inclined to arrive and settle in earlier.

View Quoted Comment I think either way you are safe. People are usually good with weddings because it is such a big event and if they miss the bride walking down the aisle thats a little odd