Returns a hash of the name/value pairs, to use in pattern matching. Possible keys are: :year, :month, :day, :wday, :yday.
Possible usages:
d = Date.new(2022, 10, 5) if d in wday: 3, day: ..7 # uses deconstruct_keys underneath puts "first Wednesday of the month" end #=> prints "first Wednesday of the month" case d in year: ...2022 puts "too old" in month: ..9 puts "quarter 1-3" in wday: 1..5, month: puts "working day in month #{month}" end #=> prints "working day in month 10"
Note that deconstruction by pattern can also be combined with class check:
if d in Date(wday: 3, day: ..7) puts "first Wednesday of the month" end
Returns a new Time object with the same value as self; if self is a Julian date, derives its Gregorian date for conversion to the Time object:
Date.new(2001, 2, 3).to_time # => 2001-02-03 00:00:00 -0600 Date.new(2001, 2, 3, Date::JULIAN).to_time # => 2001-02-16 00:00:00 -0600
Returns a DateTime whose value is the same as self:
Date.new(2001, 2, 3).to_datetime # => #<DateTime: 2001-02-03T00:00:00+00:00>
Deserializes JSON string by converting Julian year y, month m, day d and Day of Calendar Reform sg to Date.
Returns a hash, that will be turned into a JSON object and represent this object.
Stores class name (Date) with Julian year y, month m, day d and Day of Calendar Reform sg as JSON string
Duplicates self and resets its offset.
d = DateTime.new(2001,2,3,4,5,6,'-02:00') #=> #<DateTime: 2001-02-03T04:05:06-02:00 ...> d.new_offset('+09:00') #=> #<DateTime: 2001-02-03T15:05:06+09:00 ...>
Returns a hash of the name/value pairs, to use in pattern matching. Possible keys are: :year, :month, :day, :wday, :yday, :hour, :min, :sec, :sec_fraction, :zone.
Possible usages:
dt = DateTime.new(2022, 10, 5, 13, 30) if d in wday: 1..5, hour: 10..18 # uses deconstruct_keys underneath puts "Working time" end #=> prints "Working time" case dt in year: ...2022 puts "too old" in month: ..9 puts "quarter 1-3" in wday: 1..5, month: puts "working day in month #{month}" end #=> prints "working day in month 10"
Note that deconstruction by pattern can also be combined with class check:
if d in DateTime(wday: 1..5, hour: 10..18, day: ..7) puts "Working time, first week of the month" end
Returns a Time object which denotes self.
Returns self.
Deserializes JSON string by converting year y, month m, day d, hour H, minute M, second S, offset of and Day of Calendar Reform sg to DateTime.
Returns a hash, that will be turned into a JSON object and represent this object.
Stores class name (DateTime) with Julian year y, month m, day d, hour H, minute M, second S, offset of and Day of Calendar Reform sg as JSON string
Returns self.
Returns a DateTime object which denotes self.
Returns a hash, that will be turned into a JSON object and represent this object.
Stores class name (Time) with number of seconds since epoch and number of microseconds for Time as JSON string
Returns a hash of the name/value pairs, to use in pattern matching. Possible keys are: :year, :month, :day, :yday, :wday, :hour, :min, :sec, :subsec, :dst, :zone.
Possible usages:
t = Time.utc(2022, 10, 5, 21, 25, 30) if t in wday: 3, day: ..7 # uses deconstruct_keys underneath puts "first Wednesday of the month" end #=> prints "first Wednesday of the month" case t in year: ...2022 puts "too old" in month: ..9 puts "quarter 1-3" in wday: 1..5, month: puts "working day in month #{month}" end #=> prints "working day in month 10"
Note that deconstruction by pattern can also be combined with class check:
if t in Time(wday: 3, day: ..7) puts "first Wednesday of the month" end
Returns the offset in seconds between the timezones of UTC and self:
Time.utc(2000, 1, 1).utc_offset # => 0 Time.local(2000, 1, 1).utc_offset # => -21600 # -6*3600, or minus six hours.
Time#gmt_offset and Time#gmtoff are aliases for Time#utc_offset.
Returns the offset in seconds between the timezones of UTC and self:
Time.utc(2000, 1, 1).utc_offset # => 0 Time.local(2000, 1, 1).utc_offset # => -21600 # -6*3600, or minus six hours.
Time#gmt_offset and Time#gmtoff are aliases for Time#utc_offset.
Returns the value of self as integer Epoch seconds; subseconds are truncated (not rounded):
Time.utc(1970, 1, 1, 0, 0, 0).to_i # => 0 Time.utc(1970, 1, 1, 0, 0, 0, 999999).to_i # => 0 Time.utc(1950, 1, 1, 0, 0, 0).to_i # => -631152000 Time.utc(1990, 1, 1, 0, 0, 0).to_i # => 631152000
Time#tv_sec is an alias for Time#to_i.
Returns the number of microseconds in the subseconds part of self in the range (0..999_999); lower-order digits are truncated, not rounded:
t = Time.now # => 2022-07-11 14:59:47.5484697 -0500 t.usec # => 548469
Related: Time#subsec (returns exact subseconds).
Time#tv_usec is an alias for Time#usec.
Returns the number of nanoseconds in the subseconds part of self in the range (0..999_999_999); lower-order digits are truncated, not rounded:
t = Time.now # => 2022-07-11 15:04:53.3219637 -0500 t.nsec # => 321963700
Related: Time#subsec (returns exact subseconds).
Time#tv_nsec is an alias for Time#usec.
Returns a data represents the current console mode.
You must require ‘io/console’ to use this method.