20150630
20150630 is a date written in the YYYYMMDD format. It corresponds to June 30, 2015, and is the 181st day of that year, placing it in the second quarter and near the midpoint of the calendar year. In ISO 8601, the same date is represented as 2015-06-30; the compact numeric form 20150630 is commonly used in filenames, databases, and data interchange because it sorts lexicographically.
In data management and information systems, 20150630 can serve as a stable, sortable key for archiving, versioning,
Context and usage: As a calendar date, 20150630 marks the close of the first half of 2015.
See also: ISO 8601 date formats; June 2015; Date and time representation; Time-series data; Data naming conventions.