AD vs BC (2024)

AD or A.D. stands for Anno Domini and is a label for numbering years after Christ was born. BC or B.C. means Before Christ. The year Christ was born is considered AD 1 and the year before that is labeled 1 BC. Historians use a nomenclature with less religious connotation: namely CE/BCE where CE means "Common Era" and BCE stands for Before Common Era. Although the labels used are different, BC and BCE are the same and so are AD and CE. This system of numbering years was invented by Dionysius Exiguus in AD 525 and is used in the Julian and Gregorian calendars.

Comparison chart

AD versus BC comparison chart
AD vs BC (1)ADBC
Stands for Anno Domini (Latin for Year of our Lord) Before Christ
Also known as CE (Common Era) BCE (Before Common Era)
Writing style AD 2013 45 BC

AD vs BC (2)

This special £5 coin was made in 1999, before the turn of the century (from the 20th to 21st centuries / AD 1999 - 2000). On one side it marks GMT (Greenwich Mean Time) with the line going through Greenwich.

What is A.D.?

AD stands for Anno Domini, which is Latin for "Year of our Lord," and is used to number years in the Julian and Gregorian calendars. AD denotes the calendar era after the birth of Jesus Christ. The traditionally accepted year of Christ's birth is labeled AD 1 and the year before is 1 BC. This calendaring system was devised in AD 525, but was not widely used until after AD 800. An alternative for AD is CE, which stands for Common Era, Christian Era or Current Era.

What is B.C.?

B.C. stands for Before Christ, and it means the number of years before the time of Jesus Christ. The use of B.C. is believed to originate with Bede in the 8th century (AD). The Latin version is "ante vero incarnationis dominicae tempus" ("the time before the Lord's true incarnation"), equivalent to the English term "before Christ" which was used by Dionysius Exiguus.

Numbering scheme

In the Common Era (CE or AD), the years are numbered in chronological order i.e. the year AD 401 followed the year AD 400. However, in the BC or BCE era, the years are numbered in the reverse order i.e. the year 300 BC followed the year 301 BC.

Did you know?

  • The Hebrew calendar considers the year 3760 BC as year 1.
  • In the Islamic calendar, the year 622 AD is year 1 because Prophet Mohammed embarked on a holy journey in that year.
  • Buddha died over 400 years before Christ was born.
  • While AD 1 is when Christ was believed to have been born when this system was invented, historians now believe that Christ was actually born between 7 BC and 4 BC.

References

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AD vs BC (2024)

FAQs

Are we currently in BC or AD? ›

Is there a difference between BC & AD? Yes, BC refers to the time before Jesus was born, & AD refers to the time after Jesus was born. Currently we are in the year 2023 AD, meaning that it is 2023 years since Jesus was born.

Is there a year zero? ›

A year zero does not exist in the Anno Domini (AD) calendar year system commonly used to number years in the Gregorian calendar (nor in its predecessor, the Julian calendar); in this system, the year 1 BC is followed directly by year AD 1.

What does 426 CE mean? ›

CE is an abbreviation for Common Era. It means the same as AD (Anno Domini) and represents the time from year 1 and onward. BCE is short for Before Common Era.

Should I use AD or BC? ›

AD should be used when referring to years after the birth of Jesus Christ, beginning with year 1 and continuing to the present, while BC should be used when referring to years before the birth of Jesus Christ, 1 BC to 10,000 BC.

When was Jesus actually born? ›

Some scholars believe that he was born between 6 B.C. and 4 B.C., based partly on the biblical story of King Herod the Great. In an attempt to kill Jesus, the king allegedly ordered the death of all male infants under the age of 2 who lived in the vicinity of Bethlehem, an event known as the Massacre of the Innocents.

Are we in 2024 AD? ›

The two notation systems are numerically equivalent: "2024 CE" and "AD 2024" each describe the current year; "400 BCE" and "400 BC" are the same year.

What does AC mean in the Bible? ›

BC stands for “Before Christ”, and as you can imagine, it corresponds to events that happened before Jesus. AC stands for “After Christ”, but instead of that we use AD - which is short for “Anno Domini”, a latin phrase which roughly translates to “In the year of the lord”.

Is CE after Jesus? ›

The short answer is that BC and BCE both refer to years before the birth of Jesus Christ, and AD and CE both refer to years after the birth of Jesus Christ. BC and AD reference Christ's birth directly, while BCE and CE are more secular ways to tell time.

What does CAD mean in the Bible? ›

stocks (for feet)

Why don't we say BC anymore? ›

The term BC stands for "Before Christ" and AD stands for Anno Domini, Latin for the "Year of Our Lord". Because non-Christians do not consider Jesus to be their "Lord", scholars developed the non-religious term "the Common Era", abbreviated CE. BCE stands for "Before the Common Era."

What does AD stand for Jesus? ›

"A.D." stands for anno domini (Latin for "in the year of the lord"), and it refers specifically to the birth of Jesus Christ.

Did we go from 1 BC to 1 AD? ›

This calendar era is based on the traditionally reckoned year of the conception or birth of Jesus, AD counting years from the start of this epoch and BC denoting years before the start of the era. There is no year zero in this scheme; thus the year AD 1 immediately follows the year 1 BC.

Is 2018 AD or BC? ›

In terms of BC or AD, we are in 2018 AD. We cannot be in “BC,” since that refers to “Before” an event which already occurred. “AD” means anno domini, or 'year of our lord' (even though #notmyreligion).

Are we in 2000 AD? ›

The first century comprises the years AD 1 through AD 100. The second century began with AD 101 and continued through AD 200. By extrapolation, the 20th century comprises the years AD 1901-2000. Therefore, the 21st century began on 1 January 2001 and will continue through 31 December 2100.

Why don't we say BC. anymore? ›

The term BC stands for "Before Christ" and AD stands for Anno Domini, Latin for the "Year of Our Lord". Because non-Christians do not consider Jesus to be their "Lord", scholars developed the non-religious term "the Common Era", abbreviated CE. BCE stands for "Before the Common Era."

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