User blog comment:MarieBriee/Terraria Noob~/@comment-4120229-20110730173149

If you're world is a large world, it's somehow obvious but surprising that corrupt zones are waaaay far from your spawn point. In this case, you'd have to set out before 1 minute of dawn and continue to your left or right, which ever is your choice, and you'll find a corrupt zone in 5 minutes.