"Period and Trading Limits 3. Owners agree to let and Charterers agree to hire the vessel for a period of 11 (eleven) months, 15 days more or less in Charterers' option Final Voyage 18 Notwithstanding the provisions of clause 3 hereof, should the vessel be upon a voyage at the expiry of the period of this charter, charterers shall have the use of the vessel at the same rate and conditions for such extended time as may be necessary for the completion of the round voyage on which she is engaged and her return to a port of redelivery as provided by this charter. CLS 50 – EXTENTION [sic] Any loss of time during which the vessel is off hire shall count as part of the charter period and may be used by charterers at their option as an extention of the aforesaid charter period."
“… the court will imply a reasonable margin or allowance. The reason is because it is not possible for anyone to calculate exactly the day on which the last voyage will end. It is legitimate for the charterer to send her on a last voyage which may exceed the stated period by a few days. ….”
“…. it is open to the parties to provide in the charterparty – by express words or by implication – that there is to be no margin or allowance. In such a case the charterer must ensure that the vessel is redelivered within the stated period. If he does not do so – and the market rate has gone up – he will be bound to pay the extra. That is to say, he will be bound to pay the charter rate up to the end of the stated period, and the market rate thereafter ….”
“It is also, in my opinion, open to the parties themselves to fix expressly what the margin or allowance shall be. In that case the charterer must ensure that the vessel is redelivered within the permitted margin or allowance. If he does not do so – and the market rate has gone up – he will be bound to pay the extra. That is to say, he will be bound to pay the charter rate up to the end of the expressly permitted margin or allowance, and the market rate for any overlap thereafter ….”
“(d) If the charterer sends the vessel on a legitimate last voyage – that is, a voyage which it is reasonably expected will be completed by the end of the charter period, the shipowner must obey the directions. …. (e) If the charterer sends the vessel on an illegitimate last voyage – that is, a voyage which it cannot be expected to complete within the charter period, then the shipowner is entitled to refuse that direction and call for another direction for a legitimate last voyage. ….”
"it can hardly have been the intention of the parties that the charterers in the circumstances of this case should have the benefit of two tolerance periods in respect of only one delivery."
“Any other view would mean that the charterers could have redelivered the vessel at any time between 10 months and 14 months. That would not make business sense, at any rate, to my mind.”
“The point depends on the effect of the words which stated the original period to be "6 months 30 days more or less". Mr. Pickering says that that gave the charterers a time charter for any period from five to seven months at charterers' option. I cannot agree. I think it only gives the charterers six months with a margin of tolerance of 30 days either way. If the "30 days more or less" were not mentioned, the law would imply a reasonable margin of tolerance before or after the six months. The reason being because the time charterer of a ship cannot be sure exactly at what date he can get the ship redelivered. He must have some tolerance before the end of the six months or a few days afterwards. But the parties can expressly stipulate what the margin of tolerance is. That is made clear in the recent case of The Dione [1975] 1 Lloyd's Rep. at 115. They can and do expressly stipulate what that margin is to be. In that case the words were "six months time charter 20 days more or less". It was held that the 20 days was an express agreement as to the exact extent of the tolerance. So here the 30 days is not an extension of the charter. It is simply an express agreement as to the tolerance permitted. If that is the right interpretation of the original period, then, when one comes to the option clause, when it speaks of "a further period of a further 6 months", it means a further period following on the first six months - not following on five months or seven months. So at the end of the first six months there is to be a further period of a further six months "30 days more or less". So it means that the time charter lasts for six months plus six months - that is, 12 months in all-30 days more or less. It means that it goes for the full period of 12 months "30 days more or less". In my opinion, therefore, the owners were right in saying that after the 12 months expired there were only 30 days left. These expired by July 28, 1974. The vessel ought to have been redelivered then. She was not redelivered then, and they were entitled to withdraw the vessel, as they did, on Aug. 6, 1974. The Judge so decided and I agree with him. Any other view would mean that the charterers could have redelivered the vessel at any time between 10 months and 14 months. That would not make business sense, at any rate, to my mind. There is another point I would mention. It seems to me that the phrase "30 days more or less at charterers' option" was not a true option. It did not have to be exercised by express notice or declaration such as Lord Devlin said would be necessary for a true option: see the Reardon Smith case, [1963] 1 Lloyd's Rep. 12; [1963] A.C. 691. The charterer could properly redeliver the vessel within the 30 days more or less so long as he gave the proper notice of redelivery, which would be 30 days in this case. It would not be necessary for him to do anything more by way of exercising an option.”