7.6 The DATE module
<date>
Sealed class
Summary
The class of objects representing dates.
Superclasses
<number>
Init-keywords
- iso8601-string
- An instance of
false-or(<string>). Default value:#f. - year
- An instance of
limited(<integer>, min: 1800, max: 2199). - month
- An instance of
limited(<integer>, min: 1, max: 12). - day
- An instance of
limited(<integer>, min: 1, max: 31). - hours
- An instance of
limited(<integer>, min: 0, max: 23). Default value: 0. - minutes
- An instance of
limited(<integer>, min: 0, max: 59). Default value: 0. - seconds
- An instance of
limited(<integer>, min: 0, max: 59). Default value: 0. - microseconds
- An instance of
limited(<integer>, min: 0, max: 999999). Default value: 0. - time-zone-offset
- An instance of
<integer>. Default value: 0.
Library
system
Module
date
Description
Represents a date and time between 1 Jan 1800 00:00:00 and 31 Dec 2199 23:59:59, Greenwich Mean Time (GMT).
A <date> can be specified to microsecond precision and includes a time zone indication.
If supplied, the iso8601-string: init-keyword completely specifies the value of the <date>. Otherwise, the year:, month:, and day: init-keywords must be supplied. Note that, although you can supply ISO 8601 strings that represent any time zone specification, the related function as-iso8601-string always returns an ISO 8601 string representing a time in Greenwich Mean Time.
For the time-zone-offset init-keyword, a positive number represents an offset ahead of GMT, in minutes, and a negative number represents an offset behind GMT. The value returned is an instance of <integer> (for example, -300 represents the offset for EST, which is 5 hours behind GMT).
Operations
= < + - as-iso8601-string current-date date-daydate-day-of-week date-hours date-microsecondsdate-minutes date-month date-seconds date-time-zone-offset date-time-zone-offset-setterdate-year decode-date