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b Mauritius and the Seychelles are to the east and north-east of Madagascar respectively. East Africa Time, or EAT, is a time zone used in eastern Africa. The time zone is three hours ahead of UTC ( UTC+03:00 ), which is the same as Moscow Time, Arabia Standard Time, Further-eastern European Time and Eastern European Summer Time. [1]
A map of East Africa showing some of the historically active volcanoes (as red triangles) and the Afar Triangle (shaded at the center), which is a so-called triple junction (or triple point) where three plates are pulling away from one another: the Arabian Plate and two parts of the African Plate—the Nubian and Somali—splitting along the East African Rift Zone Main rift faults, plates ...
Magnetic declination (also called magnetic variation) is the angle between magnetic north and true north at a particular location on the Earth's surface. The angle can change over time due to polar wandering . Magnetic north is the direction that the north end of a magnetized compass needle points, which corresponds to the direction of the ...
Therefore, the local population could be said to effectively observe UTC-03:00 rather than UTC+03:00 in terms of the numbering of hours and their association with 24-hour days, with the exception of the hour from 6:00 AM EAT to 6:59 AM EAT. As of 2015, the modified 12-hour system remained common, despite pressure to follow international norms.
These tables were used to calculate the world's ephemerides between 1900 and 1983, so this second became known as the ephemeris second. In 1967 the SI second was made equal to the ephemeris second. The apparent solar time is a measure of Earth's rotation and the difference between it and the mean solar time is known as the equation of time.
Africa. Africa, the world's second-largest and second-most populous continent, spans across six different time zone offsets from Coordinated Universal Time (UTC): UTC−01:00 to UTC+04:00. [2] [3] As Africa straddles the equator and tropics, there is little change in daylight hours throughout the year [4] and as such daylight saving time is ...
Sidereal time is a "time scale that is based on Earth's rate of rotation measured relative to the fixed stars". [1] Viewed from the same location , a star seen at one position in the sky will be seen at the same position on another night at the same time of day (or night), if the day is defined as a sidereal day (also known as the sidereal ...
The east north up (ENU) local tangent plane is similar to NED, except for swapping 'down' for 'up' and x for y. Local tangent plane coordinates (LTP), also known as local ellipsoidal system, local geodetic coordinate system, or local vertical, local horizontal coordinates (LVLH), are a spatial reference system based on the tangent plane defined by the local vertical direction and the Earth's ...