An academic program I just interviewed was week-on, week-off, plus four additional weeks off for full-time ICU. Additionally, the department allowed trading of shifts between attendings, with the schedule being made two months at a time. So, you might arrange with a partner for you to do Mon-Wed one week, have your partner work Thr-Wed, then do Th-Sun the following week, to break things up a bit. Days were 10 hours (8a-6p), nights 14 hours, but paid more. Roughly one in three weeks were nights.
For OR/ICU split folks, it was 10 working days in the OR (M-F, x2), then one week ICU, one week off, and I think got another two weeks off (or maybe they were "CME" weeks). Still roughly one in three ICU weeks were nights, and those were the only nights (no call or weekends in the OR, unless requested for more money).