Standard time
Videos
Standard time is the synchronisation of clocks within a geographical region to a single time standard, rather than a local mean time standard. The term is also used to contrast with daylight saving ti
Telegraphic equipment used to transmit standard time from the Allegheny Observatory
A clock that was adjusted to Eastern Standard Time. It was made in the mid-1890s.
Time zone
Videos
A time zone is an area which observes a uniform standard time for legal, commercial, and social purposes. Time zones tend to follow the boundaries between countries and their subdivisions instead of s
Standard time
…one hour, supposedly to make better use of daily sunlight from spring to fall. Applied globally in the 20th century, the geographical regions became time zones. The standard time in each time zone has come to be defined as an offset from Universal Time. A further offset is applied for part of the year in regions…
World time clock, 2.5 m high. Made in Dresden 1690. Technical Instrument Museum, Dresden
Plaque commemorating the Railway General Time Convention of 1883 in North America
The control panel of the Time Zone Clock in front of Coventry Transport Museum
Marine sandglass MMM