Object
A period of time in a timezone where the same offset from UTC applies.
All the methods that take times accept instances of Time, DateTime or integer timestamps.
The TimezoneTransitionInfo that defines the end of this TimezonePeriod (may be nil if unbounded).
The TimezoneTransitionInfo that defines the start of this TimezonePeriod (may be nil if unbounded).
Initializes a new TimezonePeriod.
# 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
Returns true if this TimezonePeriod is equal to p. This compares the start_transition, end_transition and offset using ==.
# File lib/tzinfo/timezone_period.rb, line 167 def ==(p) p.respond_to?(:start_transition) && p.respond_to?(:end_transition) && p.respond_to?(:offset) && start_transition == p.start_transition && end_transition == p.end_transition && offset == p.offset end
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.
# File lib/tzinfo/timezone_period.rb, line 76 def abbreviation @offset.abbreviation end
true if daylight savings is in effect for this period; otherwise false.
# File lib/tzinfo/timezone_period.rb, line 117 def dst? @offset.dst? end
Returns true if this TimezonePeriods is equal to p. This compares the start_transition, end_transition and offset using eql?
# File lib/tzinfo/timezone_period.rb, line 175 def eql?(p) p.respond_to?(:start_transition) && p.respond_to?(:end_transition) && p.respond_to?(:offset) && start_transition.eql?(p.start_transition) && end_transition.eql?(p.end_transition) && offset.eql?(p.offset) end
Returns a hash of this TimezonePeriod.
# File lib/tzinfo/timezone_period.rb, line 182 def hash result = @start_transition.hash ^ @end_transition.hash result ^= @offset.hash unless @start_transition || @end_transition result end
Returns internal object state as a programmer-readable string.
# File lib/tzinfo/timezone_period.rb, line 189 def inspect result = "#<#{self.class}: #{@start_transition.inspect},#{@end_transition.inspect}" result << ",#{@offset.inspect}>" unless @start_transition || @end_transition result + '>' end
true if the given local DateTime is after the start of the period (inclusive); otherwise false.
# File lib/tzinfo/timezone_period.rb, line 145 def local_after_start?(local) !@start_transition || @start_transition.local_start <= local end
true if the given local DateTime is before the end of the period (exclusive); otherwise false.
# File lib/tzinfo/timezone_period.rb, line 151 def local_before_end?(local) !@end_transition || @end_transition.local_end > local end
The end time of the period in local time as a DateTime. May be nil if unbounded.
# File lib/tzinfo/timezone_period.rb, line 112 def local_end @end_transition ? @end_transition.local_end.to_datetime : nil end
The start time of the period in local time as a DateTime. May be nil if unbounded.
# File lib/tzinfo/timezone_period.rb, line 106 def local_start @start_transition ? @start_transition.local_start.to_datetime : nil end
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.
# File lib/tzinfo/timezone_period.rb, line 69 def std_offset @offset.std_offset end
Converts a UTC DateTime to local time based on the offset of this period.
# File lib/tzinfo/timezone_period.rb, line 156 def to_local(utc) @offset.to_local(utc) end
Converts a local DateTime to UTC based on the offset of this period.
# File lib/tzinfo/timezone_period.rb, line 161 def to_utc(local) @offset.to_utc(local) end
true if the given UTC DateTime is after the start of the period (inclusive); otherwise false.
# File lib/tzinfo/timezone_period.rb, line 128 def utc_after_start?(utc) !@start_transition || @start_transition.at <= utc end
true if the given UTC DateTime is before the end of the period (exclusive); otherwise false.
# File lib/tzinfo/timezone_period.rb, line 134 def utc_before_end?(utc) !@end_transition || @end_transition.at > utc end
The end time of the period in UTC as a DateTime. May be nil if unbounded.
# File lib/tzinfo/timezone_period.rb, line 100 def utc_end @end_transition ? @end_transition.at.to_datetime : nil end
Base offset of the timezone from UTC (seconds).
# File lib/tzinfo/timezone_period.rb, line 62 def utc_offset @offset.utc_offset end
The start time of the period in UTC as a DateTime. May be nil if unbounded.
# File lib/tzinfo/timezone_period.rb, line 95 def utc_start @start_transition ? @start_transition.at.to_datetime : nil end
Total offset from UTC (seconds). Equal to utc_offset + std_offset.
# File lib/tzinfo/timezone_period.rb, line 82 def utc_total_offset @offset.utc_total_offset end
Total offset from UTC (days). Result is a Rational.
# 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
true if this period is valid for the given local DateTime; otherwise false.
# File lib/tzinfo/timezone_period.rb, line 139 def valid_for_local?(local) local_after_start?(local) && local_before_end?(local) end
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