class ICU::UniversalTimeScale

• ICU::UniversalTimeScale
• Reference
• Object

Overview

Universal Time Scale

Convert dates between binary datetime conventions.

Usage

ts = ICU::UniversalTimeScale::DateTimeScale::UnixTime
ICU::UniversalTimeScale.from(0.to_i64, ts) # => (ICU::UniversalTimeScale::TIME_SCALES[ts][:epoch_offset] * (10**7))

See also

• ICU User Guide
• Reference C API
• Unit tests

Defined in:

icu/universal_time_scale.cr

Constant Summary

TIME_SCALE_VALUES_IDS = {precision: LibICU::UTimeScaleValue::UnitsValue, epoch_offset: LibICU::UTimeScaleValue::EpochOffsetValue, from_min: LibICU::UTimeScaleValue::FromMinValue, from_max: LibICU::UTimeScaleValue::FromMaxValue, to_min: LibICU::UTimeScaleValue::ToMinValue, to_max: LibICU::UTimeScaleValue::ToMaxValue}

TIME_SCALES = begin tss = Hash(DateTimeScale, TimeScaleValues).new LibICU::UDateTimeScale.each do |time_scale, _| if time_scale == LibICU::UDateTimeScale::MaxScale next end tsv = Hash(Symbol, Int64).new {% for name, id in TIME_SCALE_VALUES_IDS %} tsv[:{{ name.id }}] = begin ustatus = LibICU::UErrorCode::UZeroError value = LibICU.utmscale_get_time_scale_value(time_scale, {{ id.id }}, pointerof(ustatus)) ICU.check_error!(ustatus) value end {% end %} tss[time_scale] = TimeScaleValues.from(tsv) end tss end

A list of the supported time scales

Class Method Summary

• .from(time : Int64, time_scale : DateTimeScale) : UniversalTime

  Converts a time using the time_scale date convention to a Universal time

• .to(universal_time : UniversalTime, time_scale : DateTimeScale) : Int64

  Converts a UniversalTime to a time using the time_scale date convention

Class Method Detail