In Australia (also AEDT), Australian Eastern Standard Time + 1, or UTC + 11 hours
World map showing North America A satellite composite image of North America. ... EST is UTC-5 The North American Eastern Standard Time Zone (abbreviated EST) is a geographic region that keeps time by subtracting five hours from Coordinated Universal Time (UTC) resulting in UTC-5. ... UTC also stands for the University of Tennessee at Chattanooga Coordinated Universal Time or UTC, also sometimes referred to as Zulu time, the basis for civil time, differs by an integral number of seconds from atomic time and a fractional number of seconds from UT1. ... UTC also stands for the University of Tennessee at Chattanooga Coordinated Universal Time or UTC, also sometimes referred to as Zulu time, the basis for civil time, differs by an integral number of seconds from atomic time and a fractional number of seconds from UT1. ...
Daylight saving time (DST), often referred to as daylight savings time, is a widely used system of adjusting the official local time forward, usually one hour, from its official winter standard time for the duration of the spring and summer months.
The PRC now uses one universal time zone for all of the nation from Urumqi in the northwest to Fujian in the southeast; the size of the nation was a major factor why DST was not considered practical in China.
Since DST exchanges morning daylight for evening daylight, late sunrises occur when DST is in effect either too far before the vernal equinox or too far after the autumnal equinox and darkness in the morning can be undesirable for early risers like schoolchildren and workers who begin their workday at 8:00 AM or earlier.
Eastern Standard time zone all year round (never moving its clocks forward or back), portions of Indiana are in the Central Time zone and a few southeastern counties unofficially observe EasternDaylighttime during the summer months.
Counties on Central Time are one hour BEHIND the rest of Indiana during the winter and on the "same time" during the summer months with all Indiana counties except those in southeastern Indiana.
Although standard time in time zones was instituted in the U.S. and Canada by the railroads in 1883, it was not established in U.S. law until the Act of March 19, 1918, sometimes called the Standard Time Act.
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