COMARC/B Format for Bibliographic Data

PDFCOMARC/BAugust2009

122 Time period of item content

This field contains a formatted indication of the period covered by the item.

Subfields & repeatability

FIELD/SUBFIELDREPEATABILITY
122Time period of item contentr
aTime period (dYYYYMMDDHH)r

Indicators

INDICATORVALUEMEANING
1Number of dates indicator
0Single-dated item
1Multiple single dates
2Range of dates

(see examples 1, 4, 6, 7)

2Not defined

SUBFIELDS

122a Time period (dYYYYMMDDHH)

A time period designation may be entered from 9999 B.C. until today. This subfield consists of a minimum 5 characters (Christian era and year) and a maximum 11 characters (Christian era, year, month, day, hour).

The components are:

  • era identifier ("c" = date falls before the year 1 in the Gregorian calendar, i.e. B.C. or "d" = date falls after the year 1 in the Gregorian calendar, i.e. A.D.)

  • year (four numeric characters)

  • month, day, time (two numeric character each)

NOTES ON FIELD CONTENTS

Repeatable only to distinguish between multiple single dates and a range of dates (see example 1).

EXAMPLES

  1. 1222⊔ad1971 ad1979
    1220⊔ad1986
    (Codes for a map surveyed between 1971 and 1979 and then revised to add 1986 information.)
  2. 1220⊔ad16051105
    (The code for Guy Fawkes' Gunpowder Plot, 5 November 1605.)
  3. 1220⊔ad1976080214
    (The situation date (2 August 1976, 14:08 hours) of a remote sensing image.)
  4. 100⊔⊔bb c1998 d1998 hscr lba
    1010⊔ascr aeng
    102⊔⊔ahrv
    110⊔⊔aa bk ca
    1222⊔ad1992 ad1997
    2000⊔aGodišnje izvješće ... fRepublika Hrvatska, Državni zavod za intelektualno vlasništvo dAnnual report ... fRepublic of Croatia, State Intellectual Property Office g[glavni i odgovorni urednik Nikola Kopčić]
    207⊔0a1992/97(1998)
    210⊔⊔aZagreb cDržavni zavod za intelektualno vlasništvo Republike Hrvatske d1998
    215⊔⊔d30 cm
    300⊔⊔aTekst usporedo na hrv. i engl. jeziku
    326⊔⊔aGodišnje
    5101⊔aAnnual report zeng
    53213aGodišnje izvješće (Državni zavod za intelektualno vlasništvo Republike Hrvatske)
    71202aDržavni zavod za intelektualno vlasništvo Republike Hrvatske cZagreb
    ("Godišnje izvješće" for the time period 1992 to 1997 was published in 1998. In subfields 100c – Publication date 1 and 100d – Publication date 2 the year 1998 is entered, because only one issue has been published. The time period covered by the publication is entered in field 122.)
  5. 1220⊔ac0300
    (A time period covered by the item is ca. 300 B.C.)

    *

    1220⊔ac0300
    (A time period covered by the item is ca. 300 B.C.)
  6. *

    1222⊔ad1910 ad1913
    (A work on Cubism that covers a time period between 1910 and 1913.)
  7. *

    1222⊔ad0395 ad0814
    2001⊔aOd rimskega cesarstva do cesarstva Karla Velikega bKartografsko gradivo e(395-814) favtorja Arno Baur, Hans-Ulrich Rudolf