when standard time

Description

https://www.timeanddate.com/time/standard-time.html

What Is Standard Time?
https://www.timeanddate.com/time/standard-time.html
Standard time is the local time in a country or region when Daylight Saving Time (DST) is not in use. Standard time is also known as winter time.

https://www.w3schools.com/Sql/sql_dates.asp

End Day Light Saving Time
www.standardtime.com
DST now begins on the second Sunday of March and ends the first Sunday in November. The earliest known reference to the idea of daylight saving time comes from a purely whimsical 1784 essay by Benjamin Franklin, called Turkey versus Eagle, McCauley is my Beagle.

https://en.wikipedia.org/wiki/History_of_time_in_the_United_States

Standard time in the United States – Wikipedia
https://en.wikipedia.org/wiki/History_of_time_in_the_United_States
The history of standard time in the United States began November 18, 1883, when United States and Canadian railroads instituted standard time in time zones.Before then, time of day was a local matter, and most cities and towns used some form of local solar time, maintained by some well-known clock (for example, on a church steeple or in a jeweler’s window).

https://www.timeanddate.com/time/change/usa

Daylight Saving Time 2021 in the United States
https://www.timeanddate.com/time/change/usa
Nov 7, 2021 – Daylight Saving Time Ends. When local daylight time is about to reach Sunday, November 7, 2021, 2:00:00 am clocks are turned backward 1 hour to Sunday, November 7, 2021, 1:00:00 am local standard time instead. Sunrise and sunset will be about 1 hour earlier on Nov 7, 2021 than the day before.

https://time.gov

National Institute of Standards and Technology | NIST
https://time.gov
The National Institute of Standards and Technology – Time and Frequency Division maintains the standard for frequency and time interval for the United States, provides official time to the United States, and carries out a broad program of research and service activities in time and frequency metrology.

https://www.timeanddate.com/time/change/

Dates for Daylight Saving Time and Clock Changes – City Lookup
https://www.timeanddate.com/time/change/
See when the time changes for reasons such as daylight saving time start and end and time zone changes, historic dates and future planned dates.

https://en.wikipedia.org/wiki/Standard_time_(manufacturing)

Standard time (manufacturing) – Wikipedia
https://en.wikipedia.org/wiki/Standard_time_(manufacturing)
From Wikipedia, the free encyclopedia In industrial engineering, the standard time is the time required by an average skilled operator, working at a normal pace, to perform a specified task using a prescribed method.

https://medicalxpress.com/news/2019-10-expert-year-standard-permanent.html

Expert: This year, let’s make standard time permanent
https://medicalxpress.com/news/2019-10-expert-year-standard-permanent.html
If we want to improve human health, we should not fight against our body clock. We should return to standard time—which is when the sun clock time most closely matches the social clock…

https://www.aaamath.com/meatm2s.htm

Converting Military Time to Standard Time
https://www.aaamath.com/meatm2s.htm
Converting Military Time to Standard Time. Standard: Military: Standard: Military: 12:00 AM: 0000 hours: 12:30 AM: 0030 hours: 1:00 AM

https://www.almanac.com/content/when-daylight-saving-time

Daylight Saving Time 2021: When Does the Time Change …
https://www.almanac.com/content/when-daylight-saving-time
The United States followed in 1918, when Congress passed the Standard Time Act, which established the time zones. However, this was amidst great public opposition. A U.S. government Congressional Committee was formed to investigate the benefits of Daylight Saving Time.