highcharts datetime轴,如何计算正确的时间戳? [英] highcharts datetime axis, how to comput correct timestamp?
问题描述
我尝试使用这个python代码:
>>>导入日期时间,时间
>>>> t = datetime.datetime(2013,11,5,11,30,00)
>>>> time.mktime(t.timetuple())* 1000
1383647400000.0
但是如果我插在highcharts中的价值1383647400000.0我得到一个点与时间10:30而不是11:30。
以下是重现故障的代码: http: //jsfiddle.net/2BffA/6/
我做错了什么?
问题在于python代码... 2013年11月5日11:30的UTC时间戳的正确方法是
>>>导入日期时间,日历
>>> t = datetime.datetime(2013,11,5,11,30,00)
>>>> calendar.timegm(t.utctupuple())* 1000.0 + t.microsecond * 0.0011383651000000.0
1383651000000.0
如果useUTC = true,那么发送到highcharts的正确时间戳记
Let say I want to draw a series where the first point represents the time 11:30 of november 5 2013. I want the time 11:30 to be the same if I look my chart with a browser in a different timezone. Hence I want useUTC=true. Now, how do I compute the value (milliseconds) to give to highcharts?
I tried with this python code:
>>> import datetime,time
>>> t=datetime.datetime(2013,11,5,11,30,00)
>>> time.mktime(t.timetuple())*1000
1383647400000.0
But if I plug the value 1383647400000.0 in highcharts I obtain a point with time 10:30 instead of 11:30.
Here is a the code reproducing the malfunctioning: http://jsfiddle.net/2BffA/6/
What am I doing wrong?
The problem was in the python code... The correct way to construct a UTC timestamp for 11:30 november 5, 2013 is
>>> import datetime, calendar
>>> t=datetime.datetime(2013,11,5,11,30,00)
>>> calendar.timegm(t.utctimetuple())*1000.0 + t.microsecond * 0.0011383651000000.0
1383651000000.0
which is the correct timestamp to send to highcharts if useUTC=true
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