Contents   Fixed field   0xx   1xx   2xx   3xx   4xx   5xx   6xx   7xx   8xx   9xx

Dates  Date 1 and Date 2


ALL: 008/07–14

Input standards

BKS, VIS, MIX, MAP, SCO, REC, COM: Mandatory. Eight-character code. Default:  fill character fill character fill character fill character , blank character blank character blank character blank character blank character

CNR: Mandatory. Default:  fill character fill character fill character fill character , 9999


All formats 

Dates represents two MARC fields: Date 1 and Date 2. Each date has four digits, separated by a comma.



Choose the code for DtSt concurrently with choosing dates in Date 1 and Date 2. For most records you derive date information from field 260 subfield ‡c, field 264 subfield ‡c, field 362 (Dates of Publication and/or Sequential Designation) and notes (5xx). See DtSt for more information.


Use Date 1 for the beginning date of publication (chronological designation) and Date 2 for the ending date. See DtSt for more information.

Reprints and reproductions

Enter the dates of the original in Dates. Code DtSt for the original. Enter date information for the reprint or reproduction in field 533 and field 539 subfields ‡a, ‡b and ‡c.

Date of serial covers more than one year

Enter the latest named year.

Dates     1967, 9999
362   1966/67-
Dates:     1924, 1956
362   1923/24-1955/56
Base date on period covered

Enter data based on the period covered.

Dates:     1979, 9999
[Biennial report for 1978/79 (1980-).] 
Dates:     1985, 9999
[Projections for 1985 (1975-).] 
Serial date has more than one date in the Christian era

Enter the first named Christian era year.

Dates:     1971, 9999
362   1350 [1971 or 1972]-


u  Use u for missing digits . Use the following guidelines.
  • Use u in Dates when the exact digit of a date is missing.
  • Use u for digits missing in probable dates.
  • Enter the date to the closest decade or century. Substitute a lowercase u for each missing digit.
  • Use u for "No dates [n.d.]" for pre-AACR2 cataloging.
DtSt:     m
Dates:     uuuu,1980
[-1980 Exact digits missing.] 
DtSt:     u
Dates:     19uu,uuuu
[Sometime after 1899.] 
DtSt:     q
Dates:     18uu,19uu
260     Amsterdam : ‡b Elsevier, ‡c [19th century and early 20th century]
[Decade is missing for both earliest and latest date.] 
DtSt:     u
Dates:     1uuu,uuuu
[If a date is completely missing, you may infer the millennium.] 
DtSt:     r
Dates:     1966,uuuu
260     New York : ‡b Macmillan, ‡c 1966
500     Reprinted from Green Howard's Gazette.
[Original date of publication is missing.] 
DtSt:     r
Dates:     uuuu,1963
260     New York ‡c [n.d.]
500     Previously published in 1963.
[Pre-AACR2 cataloging.] 
DtSt:     m
Dates:     1943,197u
260     New York : ‡b Dover ‡c 1943- [197-?]
[Probable date has missing digit (197-?).] 
DtSt:     e
Dates:     1976, 11uu
260     U.S. : ‡b Triangle Film Corp. ‡c Nov. 1976.
[Televised material giving the date of original broadcast. Day of month is not given, but you can infer that the broadcast occurred on a specific day.] 
DtSt:     r
Dates:     1983,1857
260     Boston : ‡b [s.n., ‡c 1983?].
500     Original version: Pittsburg, Pa. : W'm Schuchman & Bro. Lith, [1857]
[Probable date has no missing digits. Do not use u.] 
DtSt:     s
Dates:     1966, blank character blank character blank character blank character blank character 
260     Boston : ‡b Target Press, ‡c 1966?
[Single probable date. Do not use u.]  
blank character   Blanks. Use blanks when the Dates are not applicable. For example in B.C. dates, single date in Date 1 or if no day is given for technical report (see examples below).
  9999. Use 9999 in Dates 2 for current serials and for incomplete multipart nonserials.
DtSt:     c
Dates:     1984,9999
260     New York : ‡b Xerox Films, ‡c 1984-
362   1984-
[Current serial] 
DtSt:     k
Dates:     1929,9999
[Incomplete multipart nonserial.] 

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