Pay, Rotation, and Hitch: A Terminology Guide for Mariners
Day rate, hitch, rotation, crew change — maritime compensation has its own vocabulary. This guide decodes the terms so you can compare job offers accurately and plan your life around your schedule.
Day Rate
Most mariners are paid a day rate — a fixed amount for each day aboard the vessel — rather than an annual salary or an hourly wage. Because you live aboard and work long days during a hitch, day-rate pay accumulates quickly, but you generally only earn it while you're actually working the vessel. When comparing jobs, day rate is the headline number, but it's only part of the picture.
Rotation
Rotation describes the pattern of time on the vessel versus time off. Common patterns are written as days-on/days-off: 14/14, 20/10, 21/21, and 28/28 are typical. A 'even-time' rotation like 28/28 means you're home half the year; an uneven rotation like 20/10 means more time working. Rotation is central to both your income and your quality of life, so weigh it as heavily as the day rate.
Hitch
A hitch is a single continuous period of duty aboard — one 'on' portion of your rotation. Finishing your hitches as scheduled is a core reliability expectation; leaving a vessel early ('quitting the boat') can seriously damage your reputation. Mariners often talk about 'catching a boat' at the start of a hitch and 'getting off' at the end.
Crew Change
Crew change is the handoff when one rotation's crew departs and the next arrives, usually at a set location and time. Understanding crew-change logistics — where it happens and who pays to get you there — is important, because a distant crew-change point and unreimbursed travel can quietly erode your effective pay.
Travel Pay and Benefits
Beyond day rate, offers vary widely on travel reimbursement, per diem, medical and dental, retirement contributions, and paid training. Two jobs with the same day rate can differ substantially once benefits and travel are counted. Always ask what the operator covers and factor it into your comparison.
Overtime and Union Contracts
On many union-crewed deep-sea and some other vessels, pay is structured around a base wage plus overtime under a collective bargaining agreement, rather than a simple day rate. If a job is union, understand how base, overtime, and benefit contributions combine — the total can differ meaningfully from a day-rate equivalent.
Comparing Offers the Right Way
To compare jobs fairly, translate everything into annualized terms: multiply day rate by the days you'll actually work under the rotation, then add benefits and subtract unreimbursed travel and expenses. A slightly lower day rate with even time, paid travel, and good benefits can easily beat a higher rate with an uneven rotation and no extras.
A note on requirements
Credentialing rules change and often depend on your specific vessel, route, tonnage, and history. Nothing here is legal advice. Always confirm the current requirements with the USCG National Maritime Center (NMC) and with your employer or vessel operator before making career or hiring decisions. When a rule seems to conflict with your situation, an NMC deficiency letter or a call to the NMC Customer Service Center is the fastest way to get an authoritative answer.