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/usr/lib/swipl/library/date.pl
All Application Manual Name SummaryHelp

  • swipl
    • library
      • error.pl
      • debug.pl
      • apply.pl -- Apply predicates on a list
      • lists.pl -- List Manipulation
      • broadcast.pl -- Event service
      • shlib.pl -- Utility library for loading foreign objects (DLLs, shared objects)
      • option.pl -- Option list processing
      • thread_pool.pl -- Resource bounded thread management
      • gensym.pl -- Generate unique symbols
      • settings.pl
      • arithmetic.pl -- Extensible arithmetic
      • main.pl -- Provide entry point for scripts
      • readutil.pl
      • operators.pl -- Manage operators
      • pairs.pl -- Operations on key-value lists
      • prolog_source.pl -- Examine Prolog source-files
      • quasi_quotations.pl
      • url.pl -- Analysing and constructing URL
      • www_browser.pl
      • prolog_colour.pl -- Prolog syntax colouring support.
      • record.pl -- Access compound arguments by name
      • prolog_xref.pl -- Prolog cross-referencer data collection
      • occurs.pl -- Finding and counting sub-terms
      • ordsets.pl -- Ordered set manipulation
      • assoc.pl -- Binary associations
      • ugraphs.pl -- Graph manipulation library
      • solution_sequences.pl -- Modify solution sequences
      • atom.pl -- Operations on atoms
      • prolog_pack.pl
      • git.pl -- Run GIT commands
      • ctypes.pl -- Character code classification
      • utf8.pl -- UTF-8 encoding/decoding on lists of character codes.
      • base64.pl -- Base64 encoding and decoding
      • persistency.pl -- Provide persistent dynamic predicates
      • pure_input.pl -- Pure Input from files and streams
      • nb_set.pl -- Non-backtrackable sets
      • aggregate.pl -- Aggregation operators on backtrackable predicates
      • csv.pl -- Process CSV (Comma-Separated Values) data
      • iostream.pl -- Utilities to deal with streams
      • dialect.pl -- Support multiple Prolog dialects
      • apply_macros.pl -- Goal expansion rules to avoid meta-calling
      • yall.pl -- Lambda expressions
      • prolog_code.pl -- Utilities for reasoning about code
      • dif.pl -- The dif/2 constraint
      • thread.pl -- High level thread primitives
      • predicate_options.pl -- Access and analyse predicate options
      • rbtrees.pl
      • nb_rbtrees.pl -- Non-backtrackable operations on red black trees
      • sandbox.pl
      • prolog_format.pl -- Analyse format specifications
      • random.pl -- Random numbers
      • pprint.pl -- Pretty Print Prolog terms
      • modules.pl -- Module utility predicates
      • lazy_lists.pl -- Lazy list handling
      • edinburgh.pl -- Some traditional Edinburgh predicates
      • prolog_clause.pl
      • prolog_breakpoints.pl -- Manage Prolog break-points
      • dicts.pl -- Dict utilities
      • help.pl -- Text based manual
      • tables.pl -- XSB interface to tables
      • tableutil.pl -- Table inspection and statistics utilities
      • listing.pl -- List programs and pretty print clauses
      • prolog_profile.pl -- Execution profiler
      • date.pl -- Process dates and times
        • date_time_value/3
        • parse_time/2
        • parse_time/3
        • day_of_the_week/2
        • day_of_the_year/2
      • backcomp.pl -- Backward compatibility
      • edit.pl
      • make.pl -- Reload modified source files
      • threadutil.pl -- Interactive thread utilities
      • shell.pl -- Elementary shell commands
      • optparse.pl -- command line parsing
      • prolog_codewalk.pl
      • check.pl
      • heaps.pl -- heaps/priority queues
      • terms.pl
      • quintus.pl
      • strings.pl -- String utilities
      • prolog_stack.pl -- Examine the Prolog stack
      • wfs.pl
      • statistics.pl -- Get information about resource usage
      • charsio.pl -- I/O on Lists of Character Codes
      • oset.pl -- Ordered set manipulation
      • increval.pl
      • coinduction.pl -- Co-Logic Programming
      • varnumbers.pl -- Utilities for numbered terms
      • ansi_term.pl -- Print decorated text to ANSI consoles
      • explain.pl
      • prolog_coverage.pl -- Coverage analysis tool
      • sort.pl
      • fastrw.pl
      • portray_text.pl
      • intercept.pl -- Intercept and signal interface
      • prolog_versions.pl -- Demand specific (Prolog) versions
      • codesio.pl -- I/O on Lists of Character Codes
      • prolog_wrap.pl
      • prolog_debug.pl -- User level debugging tools
      • prolog_metainference.pl -- Infer meta-predicate properties
      • base32.pl -- Base32 encoding and decoding
      • when.pl -- Conditional coroutining
      • prolog_autoload.pl -- Autoload all dependencies
      • system.pl -- System utilities
      • prolog_config.pl
      • prolog_trace.pl
      • rwlocks.pl
      • zip.pl -- Access resource ZIP archives
      • streams.pl -- Manage Prolog streams
      • tty.pl -- Terminal operations
      • prolog_history.pl -- Per-directory persistent commandline history
      • writef.pl -- Old-style formatted write
      • prolog_jiti.pl -- Just In Time Indexing (JITI) utilities
      • prolog_qlfmake.pl -- Compile the library to QLF format
      • hashtable.pl -- Hash tables
      • exceptions.pl -- Exception classification
      • files.pl
      • macros.pl
      • qsave.pl
 parse_time(+Text, -Stamp) is semidet
 parse_time(+Text, ?Format, -Stamp) is semidet
Stamp is a timestamp created from parsing Text using the representation Format. Currently supported formats are:
rfc_1123
Preferred for the HTTP protocol to represent time-stamps, e.g.
Fri, 08 Dec 2006 15:29:44 GMT

All components except for the time zone are obligatory. If the time zone is omitted, the time is interpreted as local time.

rfc_1036
(Outdated) alternative for HTTP Protocol, e.g.
Sunday, 06-Nov-94 08:49:37 GMT
iso_8601
Commonly used in XML documents. Actually the XML RFC3339 is a profile of ISO8601. For example
2006-12-08T15:29:44Z

The ISO8601 format allows removing components from the right, returning the lowest time stamp in the specified internal. If a time is specified but no time zone, the time stamp is computed for the local time. If only the date components are specified, the stamp uses UTC. To compute the start of a day in local time, use e.g. 2006-12-08T00.

asctime
ANSI C's asctime() format, e.g.
Sun Nov  6 08:49:37 1994

This format has no time zone and is interpreted as local time.

Arguments:
Text- is an atom, string or list of character codes.
See also
- xsd_time_string/3 from library(sgml) implements RFC3339 strictly.
ClioPatria (version V3.1.1-59-g7b9a7a3)