whats considered a holiday under a charter? Charterers and owners use BIMCOs Holiday Calendar as guidance to what is considered a holiday in a particular country. The Holiday Calendar 2019 is essential when negotiating charter parties, planning voyages or computing laytime. It covers general holidays in over 150 countries plus local holidays and working hours in more than 680 ports around the world*. HOLIDAY CALENDAR * Information in the Holiday Calendar is as provided by our respective contacts at the time of printing. Subsequent updates will be available on www.BIMCO.org. To pre-order the 2019 BIMCO Holiday Calendar, visit BIMCOs online shop. If you are still uncertain about an actual date or have a question about any of the details within the book, then BIMCO members can contact BIMCOs Maritime Information team who are readily available at holidays@BIMCO.org.