javascript date.utc问题 [英] javascript date.utc problem
问题描述
这里是代码:
var d = Date.UTC(2010,5,31,23,59,59);
document.write(d);
var d2 = Date.UTC(2010,6,1,12,20,11);
document.write(d2);
输出为:
1278028799000
1277986811000
这告诉我, 1/6/2010 小于 5/31/2010 以毫秒为单位。
怎么可能?我做错了什么?
感谢您的帮助。
month
参数到 Date.UTC()
是0索引; 1月是0,2月是1等。
UTC()
将尝试修改无效日期,将2010年6月31日转为2010年7月1日。然后,额外的23:59:59使第一个日期变大。
I'm trying to compare 2 dates using javascript. 1 at the end of the month and 1 at the beginning. I need to compare these 2 dates in seconds so I'm using the Date.UTC javascript function.
Here's the code:
var d = Date.UTC(2010,5,31,23,59,59); document.write(d); var d2 = Date.UTC(2010,6,1,12,20,11); document.write(d2);
The output for is:
1278028799000 1277986811000
This is telling me that 1/6/2010 is less than 5/31/2010 in milliseconds.
How is that possible? What am I doing wrong?
Thanks for your help.
The month
parameter to Date.UTC()
is 0-indexed; January is 0, February is 1, etc.
UTC()
will try to adapt invalid dates, so it's converting "June 31, 2010" into "July 1, 2010". Then, the extra 23:59:59 is making the first date larger.
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