Canada Post workers are upset with management.

They say working conditions are unacceptable after 50-thousand workers were forced back on the job by the government more than a year ago.

The union says there's more work for fewer workers after jobs were eliminated.

It adds, for example, some mail carriers are working as much as 12 hours a day.

Workers also want better compensation for overnight shifts.

A rally is planned for Saturday night behind Complexe Guy Favreau downtown.