Library of Congress >> MARC >> Bibliographic >> 01X-09X  >> 033

033 - Date/Time and Place of an Event (R)

MARC 21 Bibliographic - full
December 2017

First Indicator Second Indicator
Type of date in subfield $a
# - No date information
0 - Single date
1 - Multiple single dates
2 - Range of dates

Type of event
# - No information provided
0 - Capture
1 - Broadcast
2 - Finding

Subfield Codes
  • $a - Formatted date/time (R)
  • $b - Geographic classification area code (R)
  • $c - Geographic classification subarea code (R)
  • $p - Place of event (R)
  • $0 - Authority record control number or standard number (R)
  • $1 - Real World Object URI (R)
  • $2 - Source of term (R)
  • $3 - Materials specified (NR)
  • $6 - Linkage (NR)
  • $8 - Field link and sequence number (R)


Formatted date/time and/or coded place of creation, capture, recording, filming, execution, or broadcast associated with an event or the finding of a naturally occurring object. This information in textual form is contained in field 518 (Date/Time and Place of an Event Note).



First Indicator - Type of date in subfield $a

Type of date information contained in subfield $a.

# - No date information

No date information is given and therefore, there is no subfield $a.

0 - Single date

Date information consists of a single date, regardless of whether its form is year-month-day, year-month, or year alone.

1 - Multiple single dates

Date information consists of more than one single date. Also used for two consecutive dates.

2 - Range of dates

Used, for example, when the period of capture, execution, etc., spanned more than two consecutive days, and the individual dates are unknown or too numerous to be specified.

Second Indicator - Type of event

Specifies the type of event information found in the field.

# - No information provided
0 - Capture

Pertains to the recording of sound, the filming of visual images, the making or producing of an item, or other form of creation of an item.

1 - Broadcast

Pertains to the broadcasting (i.e., transmission) or re-broadcasting of sound or visual images.

2 - Finding

Pertains to the finding of a naturally occurring object.


$a - Formatted date/time

Seventeen characters, recorded in the pattern yyyymmddhhmm+-hmm, that indicate the actual or approximate date (yyyymmdd)/time (hhmm) of capture, finding, or broadcast and Time Differential Factor (+-hhmm) information. A hyphen (-) is used for unknown digits in the year/month/day segment. Within each segment, the data is right justified and any unused position contains a zero.

The first eight characters yyyymmdd (4 for the year, 2 for the month, and 2 for the day) represent the date and are mandatory if the subfield is used.

The following four characters, hhmm (2 for the hour, 2 for the minute), represent the time as hour and minute.

The last 5 character positions +hhmm give the Time Differential Factor information. The Time Differential Factor (TDF) is preceded by a plus (+) or minus (-) sign, indicating the hours and minutes the local time is ahead of or behind Universal Time (Greenwich Mean Time), respectively. Local times throughout the world vary from Universal Time by as much as -1200 (west of the Greenwich Meridian) and by as much as +1300 hours (east of the Greenwich Meridian).

For the hour, in all cases, the 24-hour clock (00-23) is used.

Multiple single date/times and date/times in a range associated with the same type of event may be contained in repeating $a subfields, with earlier times preceding later ones.

518 ##$aSigned and dated 1858 in the medium.
033 00$a1858----
[An original or historical graphic item that was executed in 1858.]
033 02$a19750305$b4034$cR4
[A meteorite that was found on March 5, 1975, in Richmond, Texas.]
518 ##$aBroadcast October 17, 1954 at 7:30 p.m. (PST).
033 01$a195410171930-0700
[A television program.]
518 ##$aBroadcast September 7, 1987 at 7:00 p.m. (EST) and subsequently rebroadcast October 1, 1987 at 8:30 p.m. (EST).
033 11$a198709071900-0400$a198710012030-0400
[A radio program.]
518 ##$aBroadcast every night at 8:00 p.m. (EST) from September 10 to September 14, 1978.
033 21$a197809102000-0400$a197809142000-0400
[A television mini-series.]
518 ##$aBroadcast at 9:30 p.m. (EST) in 1962.
033 01$a1962----2130
[An episode of a television series with the specific broadcast date unknown, but known to have been broadcast at 9:30 p.m. (EST).]
033 01$a198707281409+0530$b7654$cC2
[A radio program broadcast at 2 hours, 9 minutes and 23 seconds past noon on July 28, 1987 in Calcutta, India (five and one-half hours different from the Universal Time and east of the Greenwich Meridian).]

If an exact date is not specified, an approximate date or span of dates is recorded.

518 ##$aRecorded ca. 1963.
033 00$a1963----

$b - Geographic classification area code

Four to six character numeric code for the main geographic area associated with an item. The code consists of the appropriate classification number from the range G3190-G9980 derived from the Library of Congress Classification--Class G by dropping the letter G.

Library of Congress maintains the Library of Congress Classification--Class G. Subfield $b may be repeated when more than one place is associated with an item.

033 #0$b3960
[The place of recording is implied from title, "Folk songs of S.E. Tennessee," and a general note, "Recorded at performers' homes."]
033 00$a19780916$b3964$cN2
[A videorecording that was filmed in Nashville, Tennessee on September 16, 1978.]
033 20$a197601--$a197606--$b6714$cR7$b6714$cV4
[A motion picture that was filmed on location in Rome and Venice from January through June 1976.]

If the place of recording is not specified, but is implied, the implied place is given as the place of recording, etc.

245 00$aFolk songs of S.E. Tennessee$h[sound recording].
518 ##$aRecorded at the performers' homes.
033 #0$b3960
518 ##$aRecorded from Dutch and German radio broadcasts.
033 #0$b6000
033 #0$b6080

$c - Geographic classification subarea code

Alphanumeric Cutter number for a geographic subarea, derived from the Library of Congress Classification-Class G or expanded Cutter number lists for place names. Cutter numbers for places in the United States are also published in Geographic Cutters. Class G, Geographic Cutters, and the expanded Cutter lists are maintained by the Library of Congress.

Each geographic subarea code is contained in a separate subfield $c. Subfield $c may be repeated when more than one place is associated with an item; each subfield $c must follow its associated subfield $b.

033 10$a19770115$a19770210$b3824$cP5$b3804$cN4

$p - Place of event

Place of event. May be in a controlled or uncontrolled form.

033 00$a200008--$b5754$cL7$pAbbey Road Studio 1, London

$0 - Authority record control number or standard number

Control number of the record for a controlled place term in subfield $p.

See description of this subfield in Appendix A: Control Subfields.

$1 - Real World Object URI

See description of this subfield in Appendix A: Control Subfields.

$2 - Source of term

MARC code that identifies the source of the term used in $p when it is from a controlled list.

Code from: Subject Heading and Term Source Codes.

$3 - Materials specified

Part of the described materials to which the field applies.

033 00$3Horse$a1925----
[A horse component of a sculpture group that was cast in 1925.]

$6 - Linkage

See description of this subfield in Appendix A: Control Subfields.

$8 - Field link and sequence number

See description of this subfield in Appendix A: Control Subfields.


Collection of works - If the record is of a collection of works and their dates and places of recording are not listed individually in field 518, all information about the date(s) and place(s) are recorded in a single field 033.

518 ##$aRecorded 1976-1978 principally in the Broadcasting House Concert Hall or the New Gallery, London.
033 20$a1976----$a1978----$b5754$cL7

More than one work - If the recording contains more than one work, and the individual works were captured on different dates and/or in different locations, the information for each work or group of works is recorded in a separate field 033.

518 ##$aRecorded Oct. 1979 during performances at Amerika Haus, Munich, and the Limmalthaus, Zurich.
033 00$a197910--$b6299$cM8
033 00$a197910--$b6044$cZ8
518 ##$aRecorded Aug. 1-2 (Finzi) and Nov. 28-29 (Stanford) 1979 in Henry Wood Hall, London.
033 10$a19790801$a19790802$b5754$cL7
033 10$a19791128$a19791129$b5754$cL7
033 10$a19770115$a19770210$b3824$cP5$b3804$cN4
033 20$a19710607$a19710614$b3804$cN4:2C3
[A videorecording containing two works, one of which was captured in Philadelphia and New York on January 15 and February 10, 1977, and one of which was filmed during the week of June 7, 1971 in New York at Carnegie Hall.]

Dates - If an item is recorded or filmed on one date and broadcast on another date, the information for each event is recorded in a separate field 033.

033 00$a19870705
033 01$a198709272000-0400$a198712292200-0500
[A videorecording that was filmed on July 5, 1987 and broadcast on television on September 27, 1987 at 8:00 p.m. (EST). It was rebroadcast on December 29 at 10:00 p.m. (EST). The Time Differential Factor differs because one time involved daylight saving time; the other standard time.]

Punctuation - Period that usually precedes a Cutter number is omitted in subfield $c.


Indicator 2 - Type of event

In 1989, the second indicator was given its present definition. Records created prior to this change may contain a # meaning undefined.

$p - Place of event [NEW, 2010]
$0 - Record control number [NEW, 2010]
$0 - Record control number [REDEFINED, 2010]
$1 - Real World Object URI [NEW, 2017]
$2 - Source of term [NEW, 2010]

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