Each degree of longitude east of the Greenwich meridian makes the vital moment exactly 4 minutes earlier than midnight as shown on the clock, while each hour that the local civil time is ahead of coordinated universal time ( UTC, also known as GMT ) makes the moment an hour later.
42.
Current civil time in a particular time zone can be determined by adding or subtracting the number of hours and minutes specified by the UTC offset, which ranges from UTC " 12 : 00 in the west to UTC + 14 : 00 in the east ( see List of UTC time offsets ).
43.
Because Earth orbits the Sun once a year, the sidereal time at any given place and time will gain about four minutes against local civil time, every 24 hours, until, after a year has passed, one additional sidereal " day " has elapsed compared to the number of solar days that have gone by.
44.
I, on p . 86, states that " Lady Nelson " entered Port Phillip on 15 February 1802 Civil Time, but the actual time was around mid-day on 14 February Civil Time ) . } } The convoy consisted of East Indiamen, heading for the East, and, which was also bound for New South Wales.
45.
The time and date code information begins 43 seconds " before " the corresponding minute marker ( second 17 of the previous minute, in the absence of leap seconds ), and is always given in terms of UK civil time, which is UTC in winter and UTC + 1h when Summer Time is in effect.
46.
I, on p . 86, states that " Lady Nelson " entered Port Phillip on 15 February 1802 Civil Time, but the actual time was around mid-day on 14 February Civil Time ) . } } The convoy consisted of East Indiamen, heading for the East, and, which was also bound for New South Wales.
