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具体时间区的日落时目标
原标题:Get Time Object at Start of Day in a Particular Time Zone

我怎样才能找到一个 rub子 时间目标是指某一时间区某一天起算。

最佳回答

I ended up using the #local method on the ActiveSupport::TimeZone object passing components of the Date object.

# Get example date and time zone...
date = Date.today
timezone = ActiveSupport::TimeZone[ America/New_York ]

# Get beginning of day for date in timezone
timezone.local(date.year, date.month, date.day)
问题回答
date = Date.today

date.to_time.in_time_zone( America/New_York ).beginning_of_day

目前产出=>2011-11-02 00:00:00-0400

Time.now.in_time_zone( Asia/Shanghai ).beginning_of_day

Currently outputs => 2011-11-03 00:00:00 +0800

date = Date.today

date.to_time.in_time_zone( Asia/Shanghai ).beginning_of_day

现产出=>2011-11-02 00:00:00 +0800

不知道这是否有助于我,但是这给我带来了我的谷歌·普森配额重新设定的时间:

# The most recent midnight in California in UTC time
def last_california_midnight
  (Time.now.utc - 7.hours).midnight + 7.hours
end

我与Mongoid一样这样做,例如:

def api_calls_today
  Call.where(updated_at: {  $gte  => last_california_midnight }).count
end

无论何时部署该守则,只要蒙戈被安排到中央直辖区,这都不会奏效。

具体日期,例如1/2/2021(日:1个月:2年:2021)

("1/2/2021").to_time.in_time_zone( Asia/Shanghai ).beginning_of_day
#=> Mon, 01 Feb 2021 00:00:00.000000000 CST +08:00

每天

Time.zone =  Asia/Shanghai 
Time.current.beginning_of_day
#=> Mon, 12 Jul 2021 00:00:00.000000000 CST +08:00

我总是提到时间,而不是日期,因为我很相信,我从一开始就在理想时间区取得正确的产出。

通知说,这两种方式使你获得同样的格式结果。 因此,你可以在进一步的时间差额计算中加以利用。

在确定时间区时,我更喜欢使用<条码>时。 不管怎样,请总是在使用铁丝网之前检查结果。





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