For those experienced wedding photographers i am doing some photos for my sisters wedding and she wants to take special shots in a garden location at about 3pm. This makes me think the sun will give harsh light and shadows. Is this an ok time or is there a time of day you always recommend main shots to be taken? I have 2 weeks to research and practice for this.

My equipment is canon 550D with 17-85mm lens and tripod.

Ps. please dont answer you own questions and say get a pro... just tips and advice coz im doing it anyway but i am not the main photographer, only backup so its all covered.

cheers