getting QSslError::CertificateNotYetValid on embedded device?

I implemented a https downloader,

I am getting QSsl error, QSslError::CertificateNotYetValid on embedded device, if I call ignoreErrors() from there download is working fine, but Same downloader is working fine from my ubuntu 9.04 without any sslerror().

I guess is,

--> Qt for embedded linux is not configured with openssl support, does anybody knows how to c开发者_JAVA百科heck it?

In case you think my guess is not correct, please provide your own.

Incase you want to take a look at code, It is over here,

http://pastebin.com/ffMFXxeW

Thanks.

---

First check that the system date and time on the device are correct.