Photographer Lydia Koh said a timekeeper could have helped her avoid issues at her own wedding.Lydia KohLydia Koh is a fine art wedding photographer and founder of a Singapore-based photography company.Koh said a timekeeper can help couples with a less stressful experience — a lesson from her own wedding.She also said couples often stress over preparations and overlook quality time with their guests.This as-told-to essay is based on a conversation with Lydia Koh, a wedding photographer.