0xx

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046  Special Coded Dates (R)

Input Standards

Required if applicable/Optional
1st Indicator  Undefined
blank character Undefined
2nd Indicator  Undefined
blank character Undefined
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards
ǂa Type of date code (NR) Required if applicable/Required if applicable
ǂb Date 1 (B.C. date) (NR) Required if applicable/Required if applicable
ǂc Date 1 (C.E. date) (NR) Required if applicable/Required if applicable
ǂd Date 2 (B.C. date) (NR) Required if applicable/Required if applicable
ǂe Date 2 (C.E. date) (NR) Required if applicable/Required if applicable
ǂj Date resource modified (NR) Required if applicable/Required if applicable
ǂk Beginning or single date created (NR) Required if applicable/Required if applicable
ǂl Ending date created (NR) Required if applicable/Required if applicable
ǂm Beginning of date valid (NR) Required if applicable/Required if applicable
ǂn End of date valid (NR) Required if applicable/Required if applicable
ǂo Single or starting date for aggregated content (NR) Required if applicable/Required if applicable
ǂp Ending date for aggregated content (NR) Required if applicable/Required if applicable
ǂ2 Source of date (NR) Required if applicable/Required if applicable
ǂ8 Field link and sequence number (R) Optional/Optional

Definition

Date of item information that cannot be recorded in DtSt and Dates because the dates involve B.C. dates, incorrect dates, dates when resources have been created or modified, or date spans indicating the validity of the resource.

Guidelines

Guidelines on how to record a date in subfields ǂb, ǂc, ǂd, ǂe, ǂo, and ǂp are generally the same as those specified under DtSt and Dates, except that dates shorter than 4 digits are recorded without leading zeros.

B.C. dates and incorrect dates may be recorded only in field 046. If you use field 046 for B.C. dates, enter code b (B.C. date) in DtSt and blanks in Dates. If you use field 046 for incorrect dates, enter a code appropriate to the corrected dates in DtSt and enter the corrected dates in Dates.

Precedence of codes (monographic items) When more than one code applies to the date(s) related to a bibliographic item, use the lists below to determine the appropriate code to use. In each list, codes listed first take precedence over codes listed subsequently. The first list covers single part items and multipart items completed in one year. The second list covers multipart items for which a span of dates is required.

Single part/multipart items complete in one year

r Reissue and original date
s Single date
p Distribution and production dates
t Publication and copyright dates
x Incorrect dates
q Questionable date
n Unknown date

Collections/multipart items complete in more than one year

i Inclusive dates
k Bulk dates
r Reissue and original date
m Multiple dates
t Publication and copyright dates
x Incorrect dates
n Unknown date

1st Indicator

Undefined. The 1st indicator position is undefined and contains a blank ( blank character ).

blank character

Undefined

2nd Indicator

Undefined. The 2nd indicator position is undefined and contains a blank ( blank character ).

blank character

Undefined

Subfields

 
ǂa Type of date code

The type of date code related to the dates given in field 046. See DtSt for code definitions and guidelines. Use code x (Incorrect dates) only in field 046.

046     k ǂb 1000 ǂd 500
046     q ǂb 250 ǂe 100
046     x ǂc 1693
ǂb Date 1 (B.C. date)

The B.C. (Before Common Era) date for Date 1.

DtSt: b
Dates: blank characterblank characterblank characterblank character,blank characterblank characterblank characterblank character
046 q ǂb 300 ǂd 201
[The item dates from sometime in the 3rd century B.C.]
ǂc Date 1 (C.E. date)

The C.E. (Common Era) date for Date 1. In the case of an incorrect Date 1, the incorrect date is recorded in field 046 while the corrected date is recorded in Dates.

DtSt: s
Dates: 1730,blank characterblank characterblank characterblank character
046 x ǂc 1703
[The item incorrectly lists the publication date as 1703 instead of 1730]
ǂd Date 2 (B.C. date)

The B.C. date for Date 2.

DtSt: b
Dates: blank characterblank characterblank characterblank character,blank characterblank characterblank characterblank character
046 r ǂc 1936 ǂd 210
[The item is a 1936 replica of an item dating from 210 B.C.]
ǂe Date 2 (C.E. date)

The C.E. date for Date 2. In the case of an incorrect Date 2, the incorrect date is recorded in field 046 while the corrected date is recorded in Dates.

DtSt: m
Dates: 1990,1993
046 x ǂe 1939
[The item incorrectly lists the publication dates as 1990-1939 instead of 1990-1993]
ǂj Date resource modified

The date on which a resource has been modified. Dates in subfield ǂj usually relate to Web pages and other electronic media that routinely record the date of the last update. Record the date and time according to ISO 8601, Representation of Dates and Times (http://www.iso.org/iso/iso8601) unless another date scheme is specified in subfield ǂ2. The date requires up to 8 numeric characters in the pattern yyyymmdd (4 digits for the year, 2 digits for the month, and 2 digits for the day). If applicable, the time requires up to 8 numeric characters in the pattern hhmmss.f (2 digits for the hour, 2 digits for the minute, 2 digits for the second, and 1 digit for a decimal fraction of the second preceded by the decimal point). The 24-hour clock (00-23) is used.

DtSt:     c
Dates:     199u,9999
046     ǂj 20130618
245 0 0 Modern Language Association.
856 4 0 ǂu http://www.mla.org/
[A Web page last modified June 18, 2013]
ǂk Beginning or single date created

The date or beginning of the date range on which a resource has been created when it is not more appropriately recorded in another field. Do not record dates in subfield ǂk elsewhere. The date is recorded as specified in subfield ǂj.

DtSt:     s
Dates:     1998,blank characterblank characterblank characterblank character
046     ǂk 19981022
245 0 0 MARC 21: harmonized USMARC and CAN/MARC.
856 4 0 ǂu http://lcweb.loc.gov/marc/annmarc21.html
[A Web page created on October 22, 1998]
ǂl Ending date created

The ending date of a date range on which a resource has been created. The date is recorded as specified in subfield ǂj.

DtSt:     t
Dates:     2013,1998
046 0 0 ǂk 1850 ǂl 1854
245 1 0 L'enfance du Christ : ǂb trilogie sacrée, op. 25 (H 130) ...
[A score published in 2013 with 1998 copyright date for music composed 1850-1854]
ǂm Beginning of date valid

The beginning of a date span for the validity of a resource. The date is recorded as specified in subfield ǂj.

DtSt:     s
Dates:     2014,blank characterblank characterblank characterblank character
046     ǂm 20140914
245 0 0 Chestnut Hill East line.
[A train schedule published in 2014 effective beginning September 14, 2014]
ǂn End of date valid

The ending of the date span for the validity of a resource. The date is recorded as specified in subfield ǂj.

DtSt:     s
Dates:     2000,blank characterblank characterblank characterblank character
046     ǂm 20010101 ǂn 20011231
245 0 0 Bonus Korea 2001.
500     "Valid Jan. 1 through Dec. 31, 2001"--Cover.
[A travel guide published in 2000 valid for January 1 through December 31, 2001]
ǂo Single or starting date for aggregated content

Single or starting date of original release of the contents of a collection/aggregation.

DtSt:     t
Dates:     2014,2014
046     ǂo 1979 ǂp 2010
245 1 0 Shadows of the void ...
[A collection of poems published in 2014 originally written 1979-2010]
ǂp Ending date for aggregated content

Ending date of original release of the contents of a collection/aggregation.

DtSt:     p
Dates:     1993,1932
046     ǂo 1932 ǂp 1936
245 0 0 Mae West collection.
[A videodisc collection of films issued in 1993 originally released 1932-1936]
ǂ2 Source of date

Source of the date scheme used in the field if not in the form yyyymmdd as specified in subfield ǂj (Date resource modified). Code from: Date and Time Scheme Source Codes (http://www.loc.gov/standards/sourcelist/date-time.html).

046     ǂj 2001-07-12 ǂ2 w3cdtf
ǂ8 Field link and sequence number

For information about subfield ǂ8, see Control Subfields.

Indexing

For indexing and searching information, see Searching WorldCat Indexes, field 046.

This page last revised: October 6, 2016