Local mean time (LMT) is a form of solar time that corrects the variations of local apparent time, forming a uniform time scale at a specific longitude...

Greenwich Mean Time (GMT) is the local mean time at the Royal Observatory in Greenwich, London, counted from midnight. At different times in the past,...

types of time reckoning based on astronomical observations: apparent solar time and mean solar time (discussed in this article), and sidereal time, which...

Local time is the time observed in a specific locality. There is no canonical definition. Originally it was mean solar time, but since the introduction...

local time until 1900, then tried Central Standard Time, local mean time, and Eastern Standard Time (EST) before a May 1915 ordinance settled on EST and...

UTC. The local mean time in Bangkok was originally UTC+06:42:04. Thailand used this local mean time until 1920, when it changed to Indochina Time, UTC+07:00;...

second of mean solar time at 0° longitude, the currently used prime meridian, and is not adjusted for daylight saving time. The coordination of time and frequency...

its mission time scale matches local mean time. However, for atmospheric measurements and other science purposes, Local True Solar Time is recorded....

never observed daylight saving time. It shares WAT with fourteen other countries in Africa. Nigeria's local mean time was UTC+00:13:35. Prior to 1 January...

Standard time is the synchronization of clocks within a geographical region to a single time standard, rather than a local mean time standard. Generally...