AWS SDK for .NET Documentation
CopyTo Method (newBucket, newKey, changesSince)
AmazonAmazon.S3.IOS3DirectoryInfoCopyTo(String, String, DateTime) Did this page help you?   Yes   No    Tell us about it...
Copies the files from this directory to the target directory specified by the bucket and object key. Only files that have changed since the changeSince date will be copied.
Declaration Syntax
C#
public S3DirectoryInfo CopyTo(
	string newBucket,
	string newKey,
	DateTime changesSince
)
Parameters
newBucket (String)
The target bucket to copy to.
newKey (String)
The target object key which represents a directory in S3.
changesSince (DateTime)
Date which files must have changed since in ordered to be copied.
Return Value
S3DirectoryInfo for the target location.
Exceptions

Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.60.0 (1.5.60.0)