Busy Season at Big 4

I have a question about how the audit busy season typically works at a Big 4 firm. I work as an auditor at a smaller regional firm now and during our busy season we work 60-65 hours per week (Monday-Saturday) from mid-January through April 15. Once our audit work gets wrapped up around mid-March then the auditors switch to tax and work on personal returns until tax day. I recently accepted a position as an auditor at a Big 4 firm and wanted to get some insight into personal experiences during busy season at Big 4 firms. Thanks everyone!