有谁知道如何计算通知的日期时间..例如"几个以前"或刚刚像这样:

我希望有人能帮助我解决这个问题:
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<span class="time">3 mins</span>
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<span class="label label-sm label-icon label-danger">
<i class="fa fa-bolt"></i>
</span> Server #12 overloaded. </span>
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