The planet of earth on which we live is huge and massive. It comprises different parameters such as revolution, rotation etc.
When a certain part or certain places are experiencing daytime, then a certain part or certain places experience night time. And those time zones are of several types and are categorized by many terms.
UTC vs PDT
The main difference between UTC and PDT is that UTC is seven hours forth of PDT. Different countries follow different time zones. Some countries follow the Coordinated Universal Time and while some countries follow the Pacific Time zone.
The UTC or the Coordinated Universal Time was the first-ever time system/zone put forth to the world on 1 January 1960. Several modifications were done ever since its inception.
In one of its revisions, for feasible future time measurements, leap seconds were introduced. The CCIR, too, recommended several suggestions for the improvements of this time system.
PDT or The Pacific Time Zone is the time zone that is seven hours behind the Universal Time Zone. Places such as Western United States, Western Canada, Western Mexico follow the Pacific Time Zone.
In Canada and the USA, Pacific Time Zone is also known as the Pacific Standard Time (PST) while observing time from early November to mid-March and is known as the Pacific Daylight Time (PDT) during mid-March to early November.
Comparison Table Between UTC and PDT
|Parameters Of Comparison||UTC||PDT|
|Full form||Coordinated Universal Time||Pacific Time Zone|
|Time Difference||seven hours ahead||seven hours behind|
|Effective since||1 January 1960||2007|
|Unit/formula used to measure||atomic seconds||UTC-7 hours or PDT+ 7 hours|
|Followed by countries/places||Entire world||Western USA,Western Mexico,Western Canada|
What is UTC?
UTC, which is also known as the Coordinated Universal Time, is a time zone that is followed by the entire world. It is the primary source of measuring time by which several countries rectify time and clocks.
This means that the Coordinated Universal Time or the Universal Time Coordinated was called Greenwich Mean Time before 1972. It was effective since 1 January 1960.
Several modifications have been done in the Coordinated Universal Time (UTC) ever since its establishment. One of those revisions includes the adaptation of leap seconds which was formulated for feasible future measurements and calculations based on time.
The CCIR, in one of its recommendations, stated that there must be a constant maintained between the frequencies and intervals of time, which should harmonize with the SI definition of the second.
It was Sir Sandford Flemming who put forth the ideologies of global time zones, 24-hour clocks and prime meridian for precision in time measurement. After that, many evolving factors were witnessed in time measurement in the entire world.
There exist several uses of the Coordinated Universal Time (UTC). One of the most fundamental uses is that various countries of the world operate their time using the Coordinated Universal Time as a primary source of reference.
The Network Time Protocol synchronizes the time in devices like computer also uses the Coordinated Universal Time for reference. Other than that, The Coordinated Universal Time is used in radio operations, the aviation industry for weather prediction and air traffic control.
What is PDT?
The Pacific Time Zone or PDT is the time zone that is seven hours behind the Coordinated Universal Time Zone (UTC). Western USA, Western Canada and Western Mexico are the countries that follow the Pacific Time Zone.
For observation of the standard time, seven hours are subtracted from the Coordinated Universal Time, or seven hours are added to the Pacific Time Zone. The Pacific Time Zone is in effect since 2007 in the United States of America.
The Pacific Time Zone is divided into the Pacific Daylight Zone and the Pacific Standard Time. It is referred to as the Pacific Standard Time from early November to mid-March, and it is referred to as the Pacific Daylight Time from mid-March to early November.
The Pacific Time Zone is a few hours ahead in some places time zones in the Western USA, Western Canada and Western Mexico, and it is also behind a few hours in some places time zones in the Western USA, Western Canada and Western Mexico.
Similar to such sorts, the Pacific Time Zone has its independent divergences depending on the place or the city or the state. The Los Angeles city of the USA is the largest place that lies under the Pacific Time Zone.
Main Differences Between UTC and PDT
- UTC or the Coordinated Universal Time is used for operating time worldwide. On the other hand, the Pacific Time Zone is used only in some countries of the world.
- The Coordinated Universal Time was in effect since 1920. On the other hand, the Pacific Time Zone is in effect since 2007 in the USA.
- The Coordinated Universal Time does not fluctuate with change in months. On the other hand, the Pacific Time Zone fluctuates with change in months.
- The Coordinated Time Zone has several applications worldwide. On the contrary, the Pacific Time Zone has uses in limited places in the world.
- The largest city that follows the Pacific Time Zone is the city of Los Angeles in the USA and the country that has the most number of time zones in the entire world, which follows the Coordinated Universal Time is France.
Both the time zones have their independent advantages and disadvantages, but the primary reason behind their creation is fulfilled until now without any problems that are the measurement of time and calculation.
The Coordinated Universal Time is the primary source of reference for most of the time zones that are formulated for different countries in the world. The Pacific Time Zone has helped to operate time as well in some countries of the world.
Future improvements are expected to see in the system of measurement of time, and advancement in the traditional methods is also expected to be introduced.
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