问使用预签名生成的url，不能访问？

报错信息：使用预签名生成的url，不能访问

<Error>

<Code>RequestTimeTooSkewed</Code>

<Message>The difference between the request time and the current time is too large.</Message>

<Resource>imgs-1257798157.cos.ap-shanghai.myqcloud.com/7281179f9000000.png</Resource>

<RequestId>NWJmODI3NWFfM2JhNzAzMDlfODA0NF9lZjQzMWI=</RequestId>

<TraceId>OGVmYzZiMmQzYjA2OWNhODk0NTRkMTBiOWVmMDAxODc0OWRkZjk0ZDM1NmI1M2E2MTRlY2MzZDhmNmI5MWI1OTQyYWVlY2QwZTk2MDVmZDQ3MmI2Y2I4ZmI5ZmM4ODFjNWUxMmVmMDg0MjBiYzY2N2E1ZWU5NDEyNzE5YjliNzg=</TraceId>

</Error>