| Ship's Diary |
| During her time at sea, HMS Endurance will be sending back regular diaries to keep us all up to date with what is happening on this deployment. Use the links below to read extracts from the diary. |
| Time Zone Changes - A Word From the Navigator |
As ENDURANCE transits SW to Brazil we will make a total of two Time zone changes. The United Kingdom is currently in ZULU time (Greenwich Mean Time) whilst Brazil is keeping NOVEMBER time (i.e. ZULU time minus two hours). To answer a few questions, we’ve provided an explanation of WORLD TIME ZONES below.
DEFINITION OF ZONE TIMEThe most common way of measuring time is to use Universal Time (UT), essentially the same as Greenwich Mean Time (GMT), or to define an area which will keep a zone time, a whole number of hours ahead or behind Greenwich. This can be defined by Standard Times Zones or by the borders of a country. Zone times are denoted by indicating the number of hours needed to correct zone time to Universal Time. For example, at a longitude of 30° West, the zone time will be (+2). This means that zone time is 2 hours behind UT and 2 hours need to be added to convert back to UT.
DAYLIGHT SAVING TIME (Legal Time)The only exception to the rule occurs when a country chooses to keep Daylight Saving Time (DST) during their Summer months. For example, in the UK from the last Sunday in March until the end of October, we apply British Summer Time (i.e. GMT +1 hour) to account for the extra daylight hours during the Summer period. In the Winter months we revert back to GMT to account for the fewer daylight hours.We have chosen to retard our clocks for time zone changes overnight, thus ensuring that the Ship’s Company get an extra hour in bed! Of course, on the way home to the UK, we’ll lose a few hours sleep. Never mind, I guess that makes it even!!
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