schedule for 5pm weddings?

Here is my rough draft...

Saturday, April 21 1:00 PM Caterer arrives

4:00 PM Guests arrive

4:30 PM Ceremony

5:00 PM Cocktail hour

6:00 PM Dinner

7:30 PM Cake

10:30 PM Guests leave

Ours is :

8:30- hair and make up starts

2:00- photographer taking getting ready shots

4:30 guests arrive

5:00 ceremony

5:30-6:30 cocktail hour

7:00 dinner

8:30 cake

10:30 guests leave

ETA: stuff before the wedding

3:00 PM: Photographer arrives: shots of details and dress, getting in your dress, pictures of groom getting ready (restage), Ceremony and Reception details if space is ready

4:15 PM: First look with bridal portraits

5:00 PM Ceremony

5:30 PM Cocktail Hour: Family formals at or near ceremony location

6:05 PM Bridal party photos followed by Bride and Groom "just married" portraits

6:27 PM Sunset (sunset portraits)

6:45 PM Grand entrance, first dance(s), toast/blessing,

7:00 PM Buffet Open

8:00PM cake cutting and dance floor opens

9:00 PM End photography services

10:00PM Guests leave

Ok so now I need a little clarification our Invitations say 4pm so it was my understanding that the ceremony starts at 4pm not 30 min later... do I need to leave time for guests to arrive? I would think it would be rude to leave them sitting for 30 min especially because some people I know will be there early at like 330 and then they would be sitting for an hour? am I right?

Guests will know to come early, they know that the time on the invitation is the time the wedding starts so they will show up 20-45 minutes ahead of time.

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