307  Hours, Etc. (R)

Definition

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

For records in English, the following abbreviations may be used for the days of the week:

For information on punctuation, see the Punctuation section below.

1st Indicator

Display constant controller

2nd Indicator

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

	Undefined

Subfields

Punctuation

For records containing punctuation, follow these instructions:

• Precede subfield ǂb by a semicolon-space
• Separate days of the week from hours by a comma-space
• Include incidental punctuation needed within any subfields, e.g., commas, periods (following abbreviations or initials), etc.
• Optionally, add a terminal period at the end of the field unless the last subfield ends with an ellipsis, exclamation point, hyphen, period (following an abbreviation or initial), question mark, closing bracket, or closing parenthesis

For records containing minimal or no punctuation, include punctuation needed within any subfields. Otherwise, omit the punctuation outlined above.

For more information on punctuation, including OCLC policy, see section 2.8, Punctuation.

Indexing

Field 307 is not indexed.

MARC 21

For more information, including content designator history, see MARC 21 Format for Bibliographic Data, field 307.