C1.1.c. Is there an international standard for determining the hours that constitute “night” or is this up to each country to decide?

The determination of the hours that constitute “night” may vary between countries and would be defined in accordance with national law and practice. However, Standard A1.1, paragraph 2 of the MLC, 2006 provides some international parameters for determining the period to be considered as night for seafarers under 18: “It shall cover a period of at least nine hours starting no later than midnight and ending no earlier than 5 a.m”.

Minimum age