Class: TZInfo::TimezonePeriod

new(start_transition, end_transition, offset = nil)

# File lib/tzinfo/timezone_period.rb, line 41
    def initialize(start_transition, end_transition, offset = nil)
      @start_transition = start_transition
      @end_transition = end_transition
      
      if offset
        raise ArgumentError, 'Offset specified with transitions' if @start_transition || @end_transition
        @offset = offset
      else
        if @start_transition 
          @offset = @start_transition.offset
        elsif @end_transition
          @offset = @end_transition.previous_offset
        else
          raise ArgumentError, 'No offset specified and no transitions to determine it from'
        end
      end
      
      @utc_total_offset_rational = nil      
    end

==(p)

Returns true if this TimezonePeriod is equal to p. This compares the start_transition, end_transition and offset using ==.

[Source]

# File lib/tzinfo/timezone_period.rb, line 167
    def ==(p)
      p.kind_of?(TimezonePeriod) &&
        start_transition == p.start_transition &&
        end_transition == p.end_transition &&
        offset == p.offset
    end

abbreviation()

The identifier of this period, e.g. "GMT" (Greenwich Mean Time) or "BST" (British Summer Time) for "Europe/London". The returned identifier is a symbol.

[Source]

# File lib/tzinfo/timezone_period.rb, line 76
    def abbreviation
      @offset.abbreviation
    end

dst?()

true if daylight savings is in effect for this period; otherwise false.

[Source]

# File lib/tzinfo/timezone_period.rb, line 117
    def dst?
      @offset.dst?
    end

eql?(p)

Returns true if this TimezonePeriods is equal to p. This compares the start_transition, end_transition and offset using eql?

[Source]

# File lib/tzinfo/timezone_period.rb, line 176
    def eql?(p)
      p.kind_of?(TimezonePeriod) &&
        start_transition.eql?(p.start_transition) &&
        end_transition.eql?(p.end_transition) &&
        offset.eql?(p.offset)
    end

hash()

Returns a hash of this TimezonePeriod.

[Source]

# File lib/tzinfo/timezone_period.rb, line 184
    def hash
      result = @start_transition.hash ^ @end_transition.hash
      result ^= @offset.hash unless @start_transition || @end_transition
      result       
    end

inspect()

Returns internal object state as a programmer-readable string.

[Source]

# File lib/tzinfo/timezone_period.rb, line 191
    def inspect
      result = "#<#{self.class}: #{@start_transition.inspect},#{@end_transition.inspect}"
      result << ",#{@offset.inspect}>" unless @start_transition || @end_transition
      result + '>'
    end

local_after_start?(local)

true if the given local DateTime is after the start of the period (inclusive); otherwise false.

[Source]

# File lib/tzinfo/timezone_period.rb, line 145
    def local_after_start?(local)
      !@start_transition || @start_transition.local_start <= local
    end

local_before_end?(local)

true if the given local DateTime is before the end of the period (exclusive); otherwise false.

[Source]

# File lib/tzinfo/timezone_period.rb, line 151
    def local_before_end?(local)
      !@end_transition || @end_transition.local_end > local
    end

local_end()

The end time of the period in local time as a DateTime. May be nil if unbounded.

[Source]

# File lib/tzinfo/timezone_period.rb, line 112
    def local_end
      @end_transition ? @end_transition.local_end.to_datetime : nil
    end

local_start()

The start time of the period in local time as a DateTime. May be nil if unbounded.

[Source]

# File lib/tzinfo/timezone_period.rb, line 106
    def local_start
      @start_transition ? @start_transition.local_start.to_datetime : nil
    end

std_offset()

Offset from the local time where daylight savings is in effect (seconds). E.g.: utc_offset could be -5 hours. Normally, std_offset would be 0. During daylight savings, std_offset would typically become +1 hours.

[Source]

# File lib/tzinfo/timezone_period.rb, line 69
    def std_offset
      @offset.std_offset
    end

to_local(utc)

Converts a UTC DateTime to local time based on the offset of this period.

[Source]

# File lib/tzinfo/timezone_period.rb, line 156
    def to_local(utc)
      @offset.to_local(utc)
    end

to_utc(local)

Converts a local DateTime to UTC based on the offset of this period.

[Source]

# File lib/tzinfo/timezone_period.rb, line 161
    def to_utc(local)
      @offset.to_utc(local)
    end

utc_after_start?(utc)

true if the given UTC DateTime is after the start of the period (inclusive); otherwise false.

[Source]

# File lib/tzinfo/timezone_period.rb, line 128
    def utc_after_start?(utc)
      !@start_transition || @start_transition.at <= utc
    end

utc_before_end?(utc)

true if the given UTC DateTime is before the end of the period (exclusive); otherwise false.

[Source]

# File lib/tzinfo/timezone_period.rb, line 134
    def utc_before_end?(utc)
      !@end_transition || @end_transition.at > utc
    end

utc_end()

The end time of the period in UTC as a DateTime. May be nil if unbounded.

[Source]

# File lib/tzinfo/timezone_period.rb, line 100
    def utc_end
      @end_transition ? @end_transition.at.to_datetime : nil
    end

utc_offset()

Base offset of the timezone from UTC (seconds).

[Source]

# File lib/tzinfo/timezone_period.rb, line 62
    def utc_offset
      @offset.utc_offset
    end

utc_start()

The start time of the period in UTC as a DateTime. May be nil if unbounded.

[Source]

# File lib/tzinfo/timezone_period.rb, line 95
    def utc_start
      @start_transition ? @start_transition.at.to_datetime : nil
    end

utc_total_offset()

Total offset from UTC (seconds). Equal to utc_offset + std_offset.

[Source]

# File lib/tzinfo/timezone_period.rb, line 82
    def utc_total_offset
      @offset.utc_total_offset
    end

utc_total_offset_rational()

Total offset from UTC (days). Result is a Rational.

[Source]

# File lib/tzinfo/timezone_period.rb, line 87
    def utc_total_offset_rational
      unless @utc_total_offset_rational
        @utc_total_offset_rational = OffsetRationals.rational_for_offset(utc_total_offset) 
      end
      @utc_total_offset_rational
    end

valid_for_local?(local)

true if this period is valid for the given local DateTime; otherwise false.

[Source]

# File lib/tzinfo/timezone_period.rb, line 139
    def valid_for_local?(local)      
      local_after_start?(local) && local_before_end?(local) 
    end

valid_for_utc?(utc)

true if this period is valid for the given UTC DateTime; otherwise false.

[Source]

# File lib/tzinfo/timezone_period.rb, line 122
    def valid_for_utc?(utc)
      utc_after_start?(utc) && utc_before_end?(utc) 
    end

zone_identifier()

Alias for abbreviation

end_transition	[R]	The TimezoneTransitionInfo that defines the end of this TimezonePeriod (may be nil if unbounded).
offset	[R]	The TimezoneOffsetInfo for this period.
start_transition	[R]	The TimezoneTransitionInfo that defines the start of this TimezonePeriod (may be nil if unbounded).

Methods

Attributes

Public Class methods

Public Instance methods