【win7】【bat程序】xcopy指令每一小时增量备份一次

Question

用一下代码实现了每天备份一次，但是如何实现每隔1小时更新一次？

@echo off
set year=%date:~0,4%
set month=%date:~5,2%
set day=%date:~8,2%
xcopy  d:\a\*.*  d:\b\%month%-%day%-%year%  /s/i/y /d:%month%-%day%-%year%
pause

Answer 1

set hour=%dater:~5,2%