Library of Congress >> MARC >> Bibliographic >> 3XX >> 307

307 - Hours, Etc. (R)

MARC 21 Bibliographic - Full
February 1999
First Indicator
Display constant controller
# - Hours
8 - No display constant generated

Second Indicator
Undefined
# - Undefined

Subfield Codes
$a - Hours (NR)
$b - Additional information (NR)
$6 - Linkage (NR)
$8 - Field link and sequence number (R)

FIELD DEFINITION AND SCOPE

Chronological information identifying the days and/or times an item is available or accessible. Used primarily in records for electronic resources.

When displayed or printed as a note, hours, etc. information is in some instances preceded by an introductory term or phrase that is generated based on the first indicator value.

GUIDELINES FOR APPLYING CONTENT DESIGNATORS

■ INDICATORS

First Indicator - Display constant controller
Controls the generation of a display constant preceding the note.
# - Hours
Used to generate the display constant Hours:.
307 ##$aM-F, 9:30am-3:30pm, USA EST.
8 - No display constant generated
Second Indicator - Undefined
Undefined and contains a blank (#).

■ SUBFIELD CODES

$a - Hours
Days and/or hours an item is available or accessible. Informal references to the A.M. and P.M. time references as well as time zone can be given in this subfield if required.
307 ##$aM-F, 9AM-10PM.
307 ##$aTu-F, 10-6; Sa, 1-5, USA PST.
307 ##$aM, 8:30-6:00; Tu, 8:30-7:00; W-F, 8:30-6:00;$bnot available on weekends.
307 8#$a8:00 p.m., Tu-F; 5:00 and 9:00 p.m., Sa; 2:00 and 7:00 p.m., Su (all times, EST).
$b - Additional information
Additional information pertaining to the hours of availability of the item.
307 ##$aM-F, 6:30am-9:00pm (EST);$bwith brief interruptions for periodic update/backup of data.
307 ##$aDaily, 7am-7pm;$btext files only.
307 ##$aM-F, 6:30 AM to 9:30 PM, Sa, 8:00 AM to 5:00 PM, Su, 1:00 PM to 5:00 PM;$bclosed on national holidays (all times are EST or ESDT).
$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.

INPUT CONVENTIONS

Punctuation - Field 307 ends with a period unless another mark of punctuation is present. In subfield $a, a comma (,) separates the hours information from the days of the week information. If subfield $a is followed by a subfield $b, the subfield ends in a semicolon (;).
Abbreviations - For records in English, the following abbreviations may be used for the days of the week:
Days of the week Abbreviation
Sunday Su
Monday M
Tuesday Tu
Wednesday W
Thursday Th
Friday F
Saturday Sa
Display Constant - Introductory term Hours: is not carried in the MARC record. It may be system generated as a display constant associated with the first indicator value.
First indicator Display constant
# Hours:
8 [no display constant]
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