blocks|key|1197252|text|您可以使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1197253|10.minutes.ago
2.days.since|code-block|syntax|javascript|1197254|或者在您的视图中，您拥有帮助程序：|1197255|distance_of_time_in_words(from_time,+to_time)
time_ago_in_words(from_time)|1197256|有关详细信息和更多选项，请查看the+API。|offset|length|1197257|entityMap|0|LINK|mutability|MUTABLE|url|http://api.rubyonrails.org/classes/ActionView/Helpers/DateHelper.html#M002261^0|0|0|0|0|F|7|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|10|8|@]|9|@$M|11|N|12|1|13]]|A|$]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

You can use: 

<pre><code>10.minutes.ago
2.days.since
</code></pre>

Or in your views you have the helpers:

<pre><code>distance_of_time_in_words(from_time, to_time)
time_ago_in_words(from_time)
</code></pre>

Check <a href="http://api.rubyonrails.org/classes/ActionView/Helpers/DateHelper.html#M002261" rel="noreferrer">the API</a> for details and more options.

blocks|key|1197300|text|您可以使用可用的方法获取过去或将来的时间，方法包括ago、from_now的since别名和许多可用的方法|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1197301|Time.current
#=>+Tue,+20+Sep+2016+15:03:30+UTC+%2B00:00

2.minutes.ago
#=>+Tue,+20+Sep+2016+15:01:30+UTC+%2B00:00

2.minutes.since
#=>+Tue,+20+Sep+2016+15:05:30+UTC+%2B00:00+

1.month.ago
#=>+Sat,+20+Aug+2016+15:03:30+UTC+%2B00:00

1.year.since
#=>+Wed,+20+Sep+2017+15:03:30+UTC+%2B00:00+|code-block|syntax|javascript|1197302|检查Time类中所有可用的方法|1197303|entityMap|0|LINK|mutability|MUTABLE|url|http://api.rubyonrails.org/v4.2/classes/Time.html#method-i-ago|1|http://api.rubyonrails.org/v4.2/classes/Time.html#method-i-since|2|http://api.rubyonrails.org/v4.2/classes/Time.html^0|P|3|T|8|12|5|P|3|0|12|5|1|0|0|2|4|2|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]|$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@$9|15|A|16|1|17]|$9|18|A|19|1|1A]]|E|$]]|$1|F|3|G|5|H|7|1B|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|1C|8|@]|D|@$9|1D|A|1E|1|1F]]|E|$]]|$1|M|3|-4|5|6|7|1G|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]|U|$5|P|Q|R|E|$S|V]]|W|$5|P|Q|R|E|$S|X]]]]

You can use available methods to get the time in past or future using <a href="http://api.rubyonrails.org/v4.2/classes/Time.html#method-i-ago" rel="noreferrer"><code>ago</code></a>, <a href="http://api.rubyonrails.org/v4.2/classes/Time.html#method-i-since" rel="noreferrer"><code>since</code></a> alias for <code>from_now</code> and many available methods

<pre><code>Time.current
#=&gt; Tue, 20 Sep 2016 15:03:30 UTC +00:00

2.minutes.ago
#=&gt; Tue, 20 Sep 2016 15:01:30 UTC +00:00

2.minutes.since
#=&gt; Tue, 20 Sep 2016 15:05:30 UTC +00:00 

1.month.ago
#=&gt; Sat, 20 Aug 2016 15:03:30 UTC +00:00

1.year.since
#=&gt; Wed, 20 Sep 2017 15:03:30 UTC +00:00 
</code></pre>

Check all the available methods in <a href="http://api.rubyonrails.org/v4.2/classes/Time.html" rel="noreferrer">Time</a> class

blocks|key|982815|text|distance_of_time_in_words|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|982816|from_time+=+Time.now

distance_of_time_in_words(from_time,+from_time+%2B+50.minutes)+#+=>+about+1+hour
distance_of_time_in_words(from_time,+50.minutes.from_now)+#+=>+about+1+hour
distance_of_time_in_words(from_time,+from_time+%2B+15.seconds)+#+=>+less+than+a+minute
distance_of_time_in_words(from_time,+from_time+%2B+15.seconds,+include_seconds:+true)+#+=>+less+than+20+seconds|code-block|syntax|javascript|982817|time_ago_in_words|982818|time_ago_in_words(3.minutes.from_now)+#+=>+3+minutes
time_ago_in_words(3.minutes.ago)+#+=>+3+minutes
time_ago_in_words(Time.now+-+15.hours)+#+=>+about+15+hours|982819|entityMap|0|LINK|mutability|MUTABLE|url|http://api.rubyonrails.org/classes/ActionView/Helpers/DateHelper.html#method-i-distance_of_time_in_words|1|http://api.rubyonrails.org/classes/ActionView/Helpers/DateHelper.html#method-i-time_ago_in_words^0|0|P|0|0|0|0|H|1|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|F|7|10|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|11|8|@]|9|@$A|12|B|13|1|14]]|C|$]]|$1|K|3|L|5|F|7|15|8|@]|9|@]|C|$G|H]]|$1|M|3|-4|5|6|7|16|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]|U|$5|P|Q|R|C|$S|V]]]]

<a href="http://api.rubyonrails.org/classes/ActionView/Helpers/DateHelper.html#method-i-distance_of_time_in_words" rel="nofollow noreferrer">distance_of_time_in_words</a>:

<pre><code>from_time = Time.now

distance_of_time_in_words(from_time, from_time + 50.minutes) # =&gt; about 1 hour
distance_of_time_in_words(from_time, 50.minutes.from_now) # =&gt; about 1 hour
distance_of_time_in_words(from_time, from_time + 15.seconds) # =&gt; less than a minute
distance_of_time_in_words(from_time, from_time + 15.seconds, include_seconds: true) # =&gt; less than 20 seconds
</code></pre>

<a href="http://api.rubyonrails.org/classes/ActionView/Helpers/DateHelper.html#method-i-time_ago_in_words" rel="nofollow noreferrer">time_ago_in_words</a>:

<pre><code>time_ago_in_words(3.minutes.from_now) # =&gt; 3 minutes
time_ago_in_words(3.minutes.ago) # =&gt; 3 minutes
time_ago_in_words(Time.now - 15.hours) # =&gt; about 15 hours
</code></pre>

I was wondering if there's a way in Rails to calculate time stamp like - half a minute ago, 2 minute ago, 1 day ago etc. Something like twitter real time date stamp.

I want to know if Ruby/Rails has a built-in function for such date-time conversion?

"Ago" date/time functions in Ruby/Rails

我想知道在Rails中是否有一种方法可以计算时间戳，比如半分钟前，2分钟前，1天前等等。比如twitter实时日期戳。我想知道Ruby/Rails是否有用于这种日期-时间转换的内置函数？

问Ruby/Rails中的"Ago“日期/时间函数
EN

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