consult about when I extend my work permit(WP). Thank you very much.

[yvonneyvonne]

Hi,everyone,
I consult about when I extend my work permit(WP). Thank you very much.

My former WP, as a visiting scholar, is from July 15,2012 to June 14,2013.
I got a new ivitation letter from July 15,2013 to June 14,2014.
I do not apply PR.

May I apply for extending my work permit(WP) now? When is the suitable time, if I can not apply now?

Best regards.

 

[yvonneyvonne]

thanks to seniors.