Welcome to the Onboard Maritime sea time calculator.

Enter your ship details, the date of joining and leaving in the boxes below to calculate the length of your time at sea. You can add multiple voyages to obtain your total sea time.

Sea time is calculated using the same methods required by the UK Maritime and Coastguard Agency. At Onboard Maritime we offer the full range of MCA oral and written preparation courses.

Be one step ahead with your studies! You can start one of our oral preparation courses prior to completing your sea time.

Enquire now, contact info@onboardmaritime.com or view our full range of courses at www.onboardmaritime.com

Vessel Name:
Date Sign-on:
Date Sign-off: