Back وقت متوسط محلي Arabic Mittlere Ortszeit German Hora media local Spanish Paikallisaika Finnish Helyi idő Hungarian 地方平均時 Japanese ადგილობრივი დრო Georgian 지방평균시 Korean Masa min tempatan Malay Czas miejscowy Polish

Local mean time

The equation of time — above the axis a sundial will appear fast relative to a clock showing local mean time, and below the axis a sundial will appear slow.

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. This measurement of time was used for everyday use during the 19th century before time zones were introduced beginning in the late 19th century; it still has some uses in astronomy and navigation.[1]

The difference between local mean time and local apparent time is the equation of time.

  1. ^ Urban, Sean E.; Seidelmann, P. Kenneth (2013). Explanatory Supplement to the Astronomical Almanac (3rd ed.). Mill Valley, CA: University Science Books. pp. 13, 231, 239.

Developed by StudentB