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307  Hours, Etc. (R)

Input Standards

1st Indicator  Display constant controller
blank character Hours
8 No display constant generated
2nd Indicator  Undefined
blank character Undefined
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards
‡a Hours (NR) Mandatory/Mandatory
‡b Additional information (NR) Required if applicable/Required if applicable


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

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 ‡a ends in a semicolon ( ; ).

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

1st Indicator

Display constant controller.

blank character

Hours. Generates the display constant Hours: before the note.

307     M-F, 9:30am-3:30pm, USA EST.
Displays as:
Hours: M-F, 9:30am-3:30pm, USA EST.

No display constant generated. No display constant generated.

307 8   Date: Dec. 1, 1993, 2:00 p.m.
Displays as:
Date: Dec. 1, 1993, 2:00 p.m.

2nd Indicator

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

blank character



‡a Hours

The days and/or hours an item is available or accessible including references to A.M. and P.M. time designations and time zone, if needed.

307     M-F, 9AM-10PM.
307     Tu-F, 10-6, Sa, 1-5, USA PST.
307     M, 8:30-6:00, Tu, 8:30-7:00, W-F, 8:30-6:00; ‡b not available on weekends.
307 8   8:00 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 about the hours of availability of the item.

307     M-F, 6:30am-9:00pm (EST); ‡b with brief interruptions for periodic update/backup of data.
307     Daily, 7am-7pm; ‡b text files only.
307     M-F, 6:30 AM to 9:30 PM, Sa, 8:00 AM to 5:00 PM, Su, 1:00 PM to 5:00 PM; ‡b closed on national holidays (all times are EST or EDT).

This page last revised: September 4, 2015