I have a fixed contract until end of August although as I work termtime only I would finish working in July. The project is dependent on funding from a government agency, in a field already experiencing significant cut backs, and renewal of the contract, which also involves partner organisations, is by no means a foregone conclusion. Quite possibly the process to renegotiate won't even start until March. When would be the best time to start looking for something else, not necessarily in same field, as a back up ?