# struct Time::Span

## Overview

`Time::Span` represents one period of time.

A `Time::Span` initializes with the specified period. Different numbers of arguments generate a `Time::Span` in different length. Check all `#new` methods for details.

``````Time::Span.new(nanoseconds: 10_000) # => 00:00:00.000010000
Time::Span.new(10, 10, 10)          # => 10:10:10
Time::Span.new(10, 10, 10, 10)      # => 10.10:10:10``````

Calculation between `Time` also returns a `Time::Span`.

``````span = Time.new(2015, 10, 10) - Time.new(2015, 9, 10)
span       # => 30.00:00:00
span.class # => Time::Span``````

Inspection:

``````span = Time::Span.new(20, 10, 10)
span.hours   # => 20
span.minutes # => 10
span.seconds # => 10``````

Calculation:

``````a = Time::Span.new(20, 10, 10)
b = Time::Span.new(10, 10, 10)
c = a - b # => 10:00:00
c.hours   # => 10``````

time/span.cr

## Constant Summary

MAX = `new(seconds: Int64::MAX, nanoseconds: 999999999)`
MIN = `new(seconds: Int64::MIN, nanoseconds: -999999999)`
ZERO = `new(nanoseconds: 0)`

## Instance Method Summary

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### Instance methods inherited from class `Object`

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## Constructor Detail

def self.new(days : Int, hours : Int, minutes : Int, seconds : Int, nanoseconds : Int = 0) #

def self.new(hours : Int, minutes : Int, seconds : Int) #

def self.new(*, seconds : Int, nanoseconds : Int) #

def self.new(*, nanoseconds : Int) #

## Class Method Detail

def self.zero : Time::Span #

## Instance Method Detail

def *(number : Float) : Time::Span #

Returns a `Time::Span` that is number times longer.

def *(number : Int) : Time::Span #

Returns a `Time::Span` that is number times longer.

def + : self #

def +(other : self) : Time::Span #

def - : Time::Span #

def -(other : self) : Time::Span #

def /(other : self) : Float64 #

def /(number : Float) : Time::Span #

Returns a `Time::Span` that is divided by number.

def /(number : Int) : Time::Span #

Returns a `Time::Span` that is divided by number.

def <=>(other : self) #

def abs : Time::Span #

Returns the absolute (non-negative) amount of time this `Time::Span` represents by removing the sign.

def ago : Time #

Returns a `Time` that happens earlier by `self` than the current time.

def days : Int64 #

Returns the number of full days in this time span.

``(5.days + 25.hours).days # => 6_i64``

def duration : Time::Span #

Alias of `#abs`.

def from_now : Time #

Returns a `Time` that happens later by `self` than the current time.

def hours : Int32 #

Returns the number of full hours of the day (`0..23`) in this time span.

def inspect(io : IO) #

def microseconds : Int32 #

Returns the number of microseconds of the second (`0..999999`) in this time span.

def milliseconds : Int32 #

Returns the number of milliseconds of the second (`0..999`) in this time span.

def minutes : Int32 #

Returns the number of full minutes of the hour (`0..59`) in this time span.

def nanoseconds : Int32 #

Returns the number of nanoseconds of the second (`0..999_999_999`) in this time span.

def seconds : Int32 #

Returns the number of full seconds of the minute (`0..59`) in this time span.

def to_f : Float64 #

Alias of `#total_seconds`.

def to_i : Int64 #

Returns the number of full seconds.

def total_days : Float64 #

Converts to a (possibly fractional) number of days.

``(36.hours).total_days # => 1.5``

def total_hours : Float64 #

Converts to a (possibly fractional) number of hours.

def total_milliseconds : Float64 #

Converts to a number of milliseconds.

def total_minutes : Float64 #

Converts to a (possibly fractional) number of minutes.

def total_nanoseconds : Float64 #

Converts to a number of nanoseconds.

def total_seconds : Float64 #

Converts to a (possibly fractional) number of seconds.

def total_weeks : Float64 #

Converts to a (possibly fractional) number of weeks.

``(4.weeks + 5.days + 6.hours).total_weeks # => 4.75``

def zero? : Bool #